To calculate the frequency of a sound wave with a speed of 345 m/s and a wavelength of 1.31 m, use the formula f = v / λ, which yields a frequency of approximately 263.36 Hz.
To find the frequency of a sound wave, you can use the formula for the speed of sound, where speed (v) is equal to the product of the frequency (f) and the wavelength (λ). This relationship is expressed as v = f × λ. Given the speed of sound is 345 m/s and the wavelength is 1.31 m, you can rearrange the formula to solve for frequency: f = v / λ.
By substituting the given values, the calculation for frequency is: f = 345 m/s / 1.31 m. This gives us a frequency of approximately 263.35877862595 Hz, which we can round to 263.36 Hz.
A NASCAR vice president collects data on the number of crashes that 10 different drivers have had during their careers. What type of graph is most appropriate for showing a comparison of the drivers' crash record?
Answer:
Bar graphs show comparisons between qualitative data (in this case the driver) and quantitative data (the number of crashes)
Explanation:
Final answer:
A bar or column graph is most suitable for showing a comparison of crash records for different NASCAR drivers, as it effectively illustrates differences in discrete categories.
Explanation:
To show a comparison of the crash records of different NASCAR drivers, a bar graph or a column graph would be most appropriate.
This type of graph efficiently compares discrete categories—in this case, individual drivers—and shows the number of crashes associated with each one.
Each driver would be represented by a separate bar, and the length of the bar would correspond to the number of crashes they've had, allowing for a clear visual comparison.
While a line graph is suitable for demonstrating the relationship between two changing variables, such as a time series analysis of data, it is not the ideal choice for this particular scenario since we are looking at individual, discontinuous categories rather than a continuous dataset over time.
Crust describes the outermost shell of a terrestrial planet. Earth’s crust is relatively thin, just 40-kilometers (25-miles) deep. Earth's crust can be divided into two types: continental and oceanic. How do these two types of crust differ? All BUT ONE could apply.
Answer:
"Crust" refers to a
terrestrial planet's outermost surface.
In general, the Earth's crust is divided into
older, thicker continental crust and younger, denser oceanic crust.
...
The thin, 40-kilometer (25-mile) deep crust of our planet — just
1 per cent of Earth's mass — contains all known universe existence.
Explanation:
Continental crust is thicker, 22 miles (35 km) on average and less dense than oceanic crust, which accounts for its mean surface elevation of about 3 miles (4.8 km) above that of the ocean floor (Archimedes’ principle). Continental crust is more complex than oceanic crust…
Earth's crust divides into the oceanic and continental crust. Oceanic crust is thinner, made of basalt, and mainly lies under the oceans. Continental crust is thicker, comprised mostly of granite, and partly submerged under oceans.
Explanation:The Earth's crust can be divided into oceanic and continental crust. Oceanic crust, covering 55% of the Earth's surface, lies mostly under the oceans. It is typically around 6 kilometers thick and is composed of volcanic basalt rocks. These rocks are produced from the cooling of volcanic lava and primarily consist of silicon, oxygen, iron, aluminum, and magnesium.
On the other hand, the continental crust covers 45% of the Earth's surface and is thicker—ranging from 20 to 70 kilometers. Part of the continental crust is also submerged under oceans. Rather than basalt, it is made up predominantly of granitic rocks, which are a different class of volcanic silicates. Both types of crust have densities of around 3 g/cm³., which is thrice the density of water.
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A chipmunk with a mass of 2 kg sits on a branch that is 10 m off the ground.
What is its gravitational potential energy? The acceleration of gravity is 9.8
m/s?
I hope I'm not too late.
GPE = mass * gravity * height
GPE = 2 kg * 9.8 m/s * 10
GPE = 196 Joules
Answer:196
Explanation:
Very easy physics maths about current and other stuffs only one question please help me
Three identical resistors of resistance 3 ohms are connected in series in a circuit. What is the total voltage of the battery if the current in the circuit is 2A ?
Answer:
The total voltage of the circuit is 18 volts.
Explanation:
We have, three identical resistors of resistance 3 ohms are connected in series in a circuit.
For a series combination, the equivalent resistance is given by the sum of individual resistances i.e.
[tex]R_{eq}=R_1+R_2+R_3\\\\R_{eq}=3+3+3\\\\R_{eq}=9\ \Omega[/tex]
Let V is the voltage of the battery if the current in the circuit is 2 A. So,
[tex]V=IR[/tex]
[tex]V=2\times 9\\\\V=18\ V[/tex]
So, the total voltage of the circuit is 18 volts.
(NEED HELP! +28pts and BRAINLIEST) The total energy output of a star per second is called ________. Select all that apply.
a. Power
b. Luminosity
c. Visible Radiation
d. Electromagnetism
Answer:
luminosity
Explanation:
Answer:
The answer would be B.) Luminosity.
Explanation:
The luminosity of a star is basically, as the question says, the total energy output of a star per second. The luminosity is also the brightness of a star. If a star has a lot of energy, the star would be bright.
Which statement is part of Bohr's atomic model?
Answer:
the answer is A. electrons absorb or emit light when they change energy levels.
Explanation:
brainliest please? :))
A student is investigating thermal energy transfer. The student touches a piece of metal to a hot object, causing the metal to heat up. Which process of thermal energy transfer is the student demonstrating? A radiation B convection C conduction D evaporation
The thermal energy transfer process the student demonstrated is conduction.
There are basically three methods of heat transfer, they include the following;
Heat transfer by conductionHeat transfer by convectionHeat transfer by radiationHeat transfer by conduction requires the actual movement of the molecules of the medium.
As the student touches the piece of metal to the hot object, the molecules of the hot object is transferred to the piece of metal. This type of heat transfer is known as conduction.
Thus, we can conclude that the thermal energy transfer process the student demonstrated is conduction.
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A 55W light bulb will allow 0.5A to flow through it. If the outlet provides a potential difference of 110V, how much resistance is provided by the bulb?
Answer: resistance = 220 ohms
Explanation: given that
Power P = 55W
Current I = 0.5A
Potential difference V = 110V,
Using the formula
P = IV =V^2/R
55 = 110^2/R
R = 12100/ 55
R = 220 ohms
Explanation:
110=0.5×R
R=220 ohms
resistance of the light bulb=220 ohms
ocean bulges are caused by
the area between bulges of water in the ocean is called
Answer:
high tides I hope it's correct ! Have a wonderful day
Ocean bulges or tides are caused by lunar and solar gravitational forces. The area between two ocean bulges is referred to as a tidal trough. There are direct tide and opposite tide on the planet due to varied gravitational field.
Explanation:Ocean bulges are primarily caused by the gravitational pull of the moon and the sun on the Earth. These bulges, referred to as tides, occur on both sides of the planet specifically the side facing the moon and the side opposite to it. This is due to the varying intensity of the gravitational field across the Earth's surface. The area between these bulges is known as the tidal trough.
The tide that faces the moon is the result of the lunar gravitational pull and it's called direct tide. The tide on the opposite side, also known as the opposite tide, occurs because the Earth is pulled toward the moon more than the water on the far side, creating another bulge.
Ocean Bulges:
Ocean bulges are caused by gravitational forces exerted by the moon and the sun on the Earth's oceans. This causes the water to bulge, creating areas of higher water level or high tide. The gravitational forces create the bulges by pulling the water towards the moon and the sun.
The Area between Bulges:
The area between bulges of water in the ocean is called the trough. It is the region of lower water level or low tide that lies between the bulges caused by the gravitational forces. During low tide, the water level is lower in this area.
Example:
An example of ocean bulges and the area between them can be seen in the tidal patterns. As the moon orbits the Earth, its gravitational pull causes bulges on the side of the Earth facing the moon and the opposite side. The area between these bulges experiences lower water levels, forming the trough.
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Mateo makes a table of the symbols that represent the parts of an electric circuit.
A 2-column table with 4 rows. The first column labeled Symbol has entries circle with an X in it, short horizontal line at each end with a stack of vertical lines in the middle, which are from left to right very short short very short short, a short horizontal line then a small circle then a short line pointing up at about 45 degrees then a short gap then a small circle then a short horizontal line, a sort horizontal line then a zigzag then a short horizontal line. The second column labeled Component has entries empty, check mark, empty, empty.
What label should Mateo place in the marked cell?
Uses electrical energy
Provides electrical energy
Measures electric current
Controls electric current
Answer:
B provides electrical energy
Explanation:
Mateo should place in the column of marked cell is provides electrical energy.
What is electric current?The current is a stream of electrons flowing from the positive terminal of the battery to the negative terminal.
The battery provides the voltage difference to make the current flow. The zigzag line shows the resistor which controls the electric current. The switch sign is used to stop the current at its position.
Thus the marked sign in front of battery or voltage source provides the electrical energy.
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If the statement is true, select True. If it is false, select False.
If outside forces such as friction are negligible, when two objects of the same mass collide and do not stick together, the objects multiply velocities.
True
False
Answer:
false
Explanation:
Which of the following is an example of good conflict management?
O A. Letting an opponent's "trash-talking" break your focus.
O B. Throwing a baseball bat down in anger.
O C. Empathizing with other players.
D. Yelling at other players.
Answer:
C. Empathizing with other players.
Explanation:
Final answer:
Good conflict management is exemplified by empathizing with other players, which involves understanding their feelings and promotes constructive handling of conflicts. Other forms of negative reactions like throwing a baseball bat in anger or yelling do not contribute to effective resolution and are not examples of good conflict management.
Explanation:
An example of good conflict management is C. Empathizing with other players. This involves understanding and sharing the feelings of others and is a constructive approach to handling disagreements and tensions in a sports setting or any other social interaction. Empathizing helps to maintain a positive environment and encourages open communication, which can prevent the escalation of conflict. In contrast, the other options listed, such as letting trash talk break your focus, throwing a baseball bat in anger, or yelling at other players, are forms of negative or aggression that do not contribute to effective conflict resolution. Management of Emotion is crucial in dealing with conflicts. It includes recognizing our emotional responses, such as anger when we fall short of a goal, and finding constructive strategies to regulate those emotions. Techniques for managing emotions and conflict might include taking a deep breath, reframing negative statements into neutral ones, or engaging in active listening. These strategies can help mitigate the negative impacts of conflict, such as aggression or withdrawal, and lead to more adaptive coping responses.
Which of the following groups of elements is ranked from least reactive to most reactive?
A. Sr, Ca, Mg, Be
B. K, Na, Li, H
C. Li, Na, K, Rb
D. K, Ca, Sc, Ti
Answer:
C. Li, Na, K, Rb
Explanation:
Lithium < Sodium < Potassium < Rubidium
The ranking from least reactive to most reactive for a group of elements is C. Li, Na, K, Rb. All these elements are alkali metals in the first group of the periodic table, with reactivity increasing from Lithium to Rubidium.
Explanation:In the periodic table, generally speaking, reactivity increases as we go from right to left in a period and from top to bottom in a group. Thus, considering these directions, the group of elements ranked from least reactive to most reactive is C. Li, Na, K, Rb.
Here's why: all these elements are alkali metals found in the first group of the periodic table. Lithium (Li) is the smallest and least reactive among these. Sodium (Na) is larger and more reactive than lithium. Potassium (K) is even larger and more reactive, and finally Rubidium (Rb) is the largest and most reactive among them.
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Which is an identifying characteristic of pluralism?
O
A. Minorities are forced to drop their unique identities.
O
B. Minorities are encouraged to keep their unique identities.
O
C. Minorities are kept separate from the rest of the population. -
O
D. Minorities are required to move to a country that has more people
like them.
Answer:
B. Minorities are encouraged to keep their unique identities.
Explanation:
Pluralism is defined as a society where multiple people, groups or entities share political power. An example of pluralism is a society where people with different cultural backgrounds keep their own tradition.
vote me brainliest please!
ANSWER THIS ASAP Which inclined plane would require the greatest force to push the box onto the truck?
A) A
B) B
C) C
D) D
Answer: [D] (Clarification: The one with the steepest incline)
Answer: A. 22 inches
Explanation:
I just took the test and 22 was the correct answer
An electrically neutral atom has 11 protons. How many electrons will it have orbiting around it’s nucleus?
Answer: 11 electrons.
Explanation:
Atoms in their neural state, that is, uncharged or non ionized state, always have the same number of protons and electrons.
When they ionized, they will either gain or lose electron or electrons which will eventually make them either positively charged or negatively charged.
Given that an electrically neutral atom has 11 protons. It will definitely has 11 electrons orbiting around it’s nucleus
A student places his hand in front of a plane mirror as shown in
the diagram. Which terms correctly describe the image that the
mirror forms?
A true orientation, inverted, and virtual.
B reversed orientation, erect, and virtual.
C reversed orientation, erect, and real.
D true orientation, inverted, and real.
Answer:
A:
Explanation:
Plane mirrors always form virtual images meaning although the object appears to be in the other side of the mirror the light rays actually originate in front of it. The image is inverted meaning that when you lift your right hand it shows your left hand rising. and with true orientation.
Reversed orientation, erect, and virtual terms correctly describe the image that the mirror forms.
To find the correct option among all the options, we need to know about the properties of image formed by a plane mirror.
What are the properties of image formed by a plane mirror?The properties of image formed by a plane mirror are as follows
It's virtual.The object distance is equal to the image distance.The image is side ways inverted i.e. right side of object seems as left side of image and vice versa but it is erect along height.Image size is same as that of object.What is a virtual image?The virtual image is not inverted.It cannot be projected on the screen. Virtual image is formed by plane mirror. We can also get virtual image by concave and convex lens by proper object distance.Thus, we can conclude that the option (b) is correct.
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Why did one-half of the Moon's surface remain
hidden from human sight until the era of space
probes, which started in 1959?
Answer:
The moon's revolution around its axis and the moon's revolution around the Earth take the same time, approximately 27 days. That causes one side of the Moon to always face the Earth while the other side always faces away from the Earth. That is why it took probes to go into space to photograph the side that is never visible from Earth for people to be able to see it.
A 80-kg person sits on a 2.7kg chair. Each leg of the chair makes contact with the floor on a circle that is 1.3 cm in diameter. Find the pressure exerted on the floor by each leg of the chair, assuming that the weight is evenly distributed.
Answer:
need help with this 2
Explanation:
pls hellp
Explanation:
Assuming the chair has four legs,
Area = (πr²)
= 1.33 m²
Pressure = Force/Area
= 827/1.33
= 621.8 Pa
57:23
Look at the diagram showing resistance and flow of
electrons.
Which labels best complete the diagram?
X: High resistance
Y: Low resistance
Z: Flow of electrons
X: Low resistance
Y: Flow of electrons
Z: High resistance
X: Flow of electrons
Y: High potential energy
Z: Low potential energy
X: Low potential energy
Y: High potential energy
Z: Flow of electrons
N
Answer:
X: Low potential energy
Y: High Potential energy
Z: Flow of electrons
Explanation: From the figure, it's obvious that Z is the flow of electrons, as shown by the arrow demonstrating the direction of the flow. Because of this, we can easily nullify choices B and C.
From the figure, we can notice that Y has more energy stored and X has a lot less, so you can conclude that Y has high potential energy while X has low potential energy.
To create a rainbow, is sunlight bouncing off the outside of a raindrop or the inside of raindrop?
Answer:i think it would have to be inside
Explanation:
bc the light has to be refracted (aka has to be inside water)at a angle to see a rainbow with are eyes
Rainbows are formed when sunlight enters a raindrop, bends (refracts), reflects off the inside surface, and exits, refracting again. This process separates sunlight into its component colors, leading to the beautiful spectrum of a rainbow. The crucial factors for a rainbow's formation are refraction, reflection, and dispersion within the raindrop.
Explanation:To understand how rainbows are formed, it's essential to explore the interaction between sunlight and raindrops. Rainbows occur due to a combination of refraction, reflection, and dispersion of sunlight within raindrops. When sunlight enters a raindrop, it bends or refracts because light travels slower in water than in air. This bending of light varies with wavelength, causing the light to spread out into a spectrum of colors.
The reflection part happens inside the raindrop. After refraction, the light rays hit the back of the raindrop and reflect off the inside surface. This reflection changes the direction of the light within the drop, sending it back toward the front of the raindrop where it refracts again as it exits back into the air. Different colors of light bend by different amounts during refraction, which disperses the light into a spectrum of colors that we see as a rainbow.
Interestingly, the position and size of the rainbow you see are determined by the collection of raindrops reflecting light back to your eyes at the precise angle required for the colors to be observable. Each color exits the raindrop at a slightly different angle, leading to the formation of the circular arc of the rainbow. Red light is refracted and reflected at angles that make it appear on the top of the rainbow, while violet light appears on the bottom. Thus, the creation of a rainbow relies on sunlight bouncing off the inside of a raindrop, not the outside.
A tiger leaps with a horizontal speed of 4.5 m/s from a boulder and lands 15 meters away.What is the vertical velocity with which the tiger lands?
661 m/s down
32.7 m/s down
2.94 m/s down
0.34 m/s down
Answer:
v_oy = 16.33 m/s
Explanation:
To find the vertical velocity of the tiger, you use the information about the horizontal velocity and maximum horizontal distance traveled.
You use the following formula for the range of the trajectory:
[tex]x_{max}=\frac{2v_{ox}v_{oy}}{g}[/tex] ( 1 )
v_ox: horizontal initial velocity = 4.5m/s
v_oy: vertical initial velocity = ?
g: gravitational acceleration = 9.8m/s^2
x_max: range of the trajectory = 15 m
You do v_oy the subject of the formula ( 1 ) and you replace the values of the other parameters in order to calculate v_oy:
[tex]v_{oy}=\frac{gx_{max}}{2v_{ox}}=\frac{(9.8m/s^2)(15m)}{2(4.5m/s)}\\\\v_{oy}=16.33\frac{m}{s}[/tex]
hence, the initial vertical velocity of the tiger is 16.33m/s
The following two formulas are equivalent: D = m / V and V = m / D.
true or false
Answer:
the answer is true
Explanation:
Both equations are derived from the density formula, hence it is TRUE that they are equal.
In order to know whether the two formulas are equivalent, we need to determine the formula for calculating the density of a substance
Density = Mass/Volume
D = m/V
Make V the subject of the formula
[tex]D = \frac{m}{V}\\DV = m\\[/tex]
Divide both sides by D
[tex]\frac{DV}{D} =\frac{m}{D}\\ V = \frac{m}{D}[/tex]
Since both equations are derived from the density formula, hence it is TRUE that they are equal.
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Which of the following is NOT a type of electromagnetic wave
Answer:
Where's the options?
Explanation:
Answer:
where are the options so we can answer
(free point thanks)
Explanation:
Which of the following is a potential explanation to resolve the Fermi paradox?
A. The numbers in the Drake equation are incorrect.
B. There is actually life on the Galilean moons of Jupiter.
C. There are fewer stars in the universe than we think there are.
D. Aliens are intentionally isolating us or refusing to communicate with us.
The Fermi paradox can potentially be explained by the idea that aliens are deliberately not contacting us. Other theories suggest rare intelligent life, undetectable communications, or self-destruction of advanced civilizations.
Explanation:A potential explanation to resolve the Fermi paradox is that aliens are intentionally isolating us or refusing to communicate with us (Option D). This concept suggests that advanced civilizations may make it a practice not to interfere with planets harboring immature, developing species such as humans. Other resolutions refer to life being common while intelligent life is rare, the possibility that invisible streams of data are beyond our detection capabilities, or the theory that civilizations self-destruct upon reaching a certain technological level. Considering the Drake Equation, each term estimates the likelihood of alien civilizations, but many values are guessed due to our limited knowledge. Discoveries of exoplanets affirm the prevalence of planetary systems, contributing to this debate.
Gravitational force is directly related to mass and inversely related to distance. So the bigger the masses the greater the force and the greater the distance the smaller the force. According to the model, which sphere has the greatest gravitational attraction to sphere D?
Q:
A:
Answer:Well according to the formula :
Fg = G • m1 • m2
__________
r^2
If one were to increase the masses of the objects it will have a direct impact on the gravitational force as well, as it increase the gravitational force. It is directly proportional to mass.
Distance on the other hand is inversely proportional to the gravitational force, basically increasing the distance between two objects of substantial mass causes a decrease of attraction or gravitational force between those 2 bodies of mass.
Explanation:
Answer:
C) Sphere C because it is larger than A and closer than B.
Technical physics.... I need someone’s wizardry
The speed of the truck, given the frequency and the speed of sound would be 6.2 m/s
Given:
Fs = 500 Hz (source frequency)
Fo = 480 Hz (observed frequency)
v = 348 m/s (speed of sound)
Using the Doppler effect formula:
Fo = Fs × (v / (v + vs))
where vs is the source velocity (truck velocity), we can solve for vs:
480 = 500 × (348 / (348 + vs))
Simplifying and solving for vs:
0.96 = 348 / (348 + vs)
0.96(348 + vs) = 340
334.08 + 0.96vs = 340
0.96vs = 5.92
vs = 5.92 / 0.96
vs ≈ 6.2 m/s
Therefore, the truck is moving away from the observer at a speed of approximately 6.2 m/s.
I am pretty sure its B.
The structural layers of the sun are shown in the cross-sectional diagram.
Which layer represents the radiative zone?
A
B
C
D
I will give brainliest if right!!
Answer:
it’s a
Explanation:
Answer:
A is oyur answer
Explanation:
An atom of this element would have a very easy time losing one electron to form an ionic bond with an atom of an element that would easily accept it:
Answer: potassium
Explanation: An atom of potassium would have a very easy time losing one electron to form an ionic bond with an atom of an element that would easily accept it.
Group 1 elements like sodium (Na) have one electron in their outer shell, which they can easily lose to form ions and create ionic bonds. When sodium bonds with chlorine (Cl), it loses one electron and becomes a positive ion, while chlorine gains that electron to become a negative ion, resulting in the formation of sodium chloride (NaCl).
Explanation:The element in question is likely from Group 1 of the periodic table, also known as the alkali metals. These elements, such as sodium (Na), have a single electron in their outermost shell. This lone electron is easily lost during chemical reactions, forming a positive ion (a cation), and allowing the atom to attain a more stable electron arrangement.
An example of such a reaction is when sodium forms an ionic bond with chlorine (Cl) to create sodium chloride (NaCl), commonly known as table salt. Chlorine, as a halogen from Group 7A, readily accepts the lone electron from sodium because it has seven electrons in its valence shell and needs only one more to complete its octet, becoming a negative ion (an anion).
Consequently, the sodium atom becomes a sodium ion (Na+) and the chlorine atom becomes a chloride ion (Cl-). This exchange of electrons is the basis of an ionic bond, which is a type of chemical bond where a metal cation and a nonmetal anion are attracted to each other due to their opposite charges.
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Which two actions best demonstrate taking responsibility?
Answer:
Leading your people into the right direction, and always knowing what is best for you and your people.
Explanation: