Which force is opposite gravity?


A. Normal Force


B. Frictional Force


C. Applied Force

A force is calculated in neutons

Answer: newton

Explanation:

Provided the dots represent time-lapse snapshots of an object's motion from left to right, then

(a) The underlying object is slowing down because the distance between adjacent snapshots (dots) decreases with time

(the answer is intentionally reworded to avoid sounding nonsensical)

The answer is B or A im pretty sure its B thou

heat being supplied might do

Hippocampus and prefrontal cortex

First, note that a circle has a measurement of 360°.

Note that there are 70 people in all. First, divide 360 with 70

360/70 = ~5.14

Each person's "favorite choice" would be 5.14° of a circle.

Now, solve for honey mustard. There are 10 people who chose honey mustard, so multiply the number above by 10.

5.14 x 10 = 51.4

D. 51.4° is your answer

~

Answer:

51.4

Explanation:

i think the answer is true

Sally's displacement (5m forward) is 10m less than her distance traveled (15m).  (B)

Answer:

Sally's displacement is 10 m less than her distance traveled.  

Explanation:

It is given that, Sally walks 10 meters forward and then 5 meters backwards. The total path covered by a particle is called total distance covered by it and the shortest path covered by it is called its displacement.

From the attached figure, A is the initial position of Sally. Initially, he moves from A to B. It covers a distance of 10 m then he moves from B to C. So, the total distance covered by Sally is AB+BC = 15 m

While her displacement is AC i.e. 5 m

So, the correct option is (b) i.e. her displacement is 10 m less than her distance travelled.

If you write down the formula for friction, you will get an answer.

Ff = u * N               Where N is a push down force that an object experiences.

                              u (mu) is a constant and has no units

It may not be accelerating and still experience friction. A is not correct.

Color and Density will not affect the frictional force. B is not so.

Buoyant forces are a different thing altogether. Generally friction has nothing to do with them. C is incorrect.

The last one is your answer. Technically mg should be the answer and not mass, but the second part is correct.

Ways of thinking, feeling, or acting that are unusual are symptoms of a mental disorder.

Answer: Option (D) is the correct answer.

Explanation:

When a person thinks, feels or acts in ways which are not normal or which are unusual in many ways then this activity is considered as symptoms of a person's behavior.

For example, a women argues with everyone without any reason.

So, when a person suffers from some any mental disorder then he doesn't know what he is saying, doing or expressing.

Hence, we can conclude that ways of thinking, feeling, or acting that are unusual are symptoms of a mental disorder.

Answer:

empty space

Explanation:

D. Femur, sacrum, pelvis and skull

The aspect not part of John Dalton's atomic theory is 'Atoms are made up of smaller particles.' Dalton's postulates did not acknowledge subatomic particles as he viewed atoms as indivisible and the smallest particles.

Within John Dalton's atomic theory, several postulates outline his early understanding of the atomic structure. Based on the provided excerpts, the answer to which is not part of John Dalton's atomic theory is d. Atoms are made up of smaller particles.

Dalton's theory emphasized the indivisibility of atoms; he considered atoms as the smallest, indivisible particles and did not acknowledge that atoms could be split into subatomic particles such as protons, neutrons, and electrons. This contrasts with modern understanding, which recognizes that atoms indeed consist of smaller subatomic particles, but during Dalton's time, such knowledge had not yet been discovered.

The first two postulates of Dalton's atomic theory correctly state:

However, subsequent scientific discoveries have shown that even these points have exceptions, such as the existence of isotopes with different masses within a single element.

We study the motion of the ball on the two coordinating needles Ox and Oy, originated on the ground. On Ox the ball has a uniform straight motion with the velocity vx = vo and the equation of motion is x = vo * t, and on the ball Oy has a movement uniformly accelerated with acceleration g and no initial velocity on the axis Oy v_oy = 0 (free fall), so the equation of motion is y = h-gt² / 2.The equation of the trajectory is obtained by eliminating the time from the two equations. We hold t = x / vo => y = h-gx²/2vo².The trajectory is a parabola because y is a second degree function of x. Bila arrives on the ground when y = 0 => t =√(2h/g)=√(2*100/9.8)=√20.4=4.51 s

The ball will fall towards the rock at a distance d = vo * t =10*4.51≈45 m

The correct answer is e

Answer:

The given statement is true

Explanation:

Injuries are the ones that cut skin, tissues. Injuries include cuts, scratches, scrapes and punctured skin and worst case is fatal.

Normally injury is caused by external force, includes damages done to the body.

Definitely injuries can be prevented if rules are followed, protective equipments are used.  Also in each sport, risks of injuries if known measures can be taken to prevent the injuries

The given statement is true

Injuries can be preventable if you follow the rules, use protective equipment is a true statement.

This is defined as harm to the body and is usually associated with pain, bleeding etc.

This can be avoided when performing sports through using protective equipment and risks involved in the sport.

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According to Ohm's law for a portion of the circuit we have:

U=RI=>I=U/R=9/4=2.25 A

Answer:

Current in the circuit, I = 2.25 A

Explanation:

Given that,

Voltage of the battery, V = 9 V

Resistance of the bulb, R = 4 ohms

We need to find the current in the circuit. It can be calculated using Ohm's law. Ohm's law gives the relationship between the current, resistance and the voltage as :

[tex]V=IR[/tex]

[tex]I=\dfrac{V}{R}[/tex]

[tex]I=\dfrac{9\ V}{4\ \Omega}[/tex]

I = 2.25 A

So, the current flowing in the circuit is 2.25 amperes. Hence, this is the required solution.

Using the kinematic equation ;

vf²=vi²+2ad just rearrange for d;

vf²-vi²=2ad;

(vf²-vi²)/2a=d

Now plug the numbers in.

vf=24.2

vi=0

a=9.81=g

(24.2²-0²)/(2*9.81)=29.8 m.

D isd your answer  buddy

Answer:

Binary

Explanation:

When two compounds are made from specifically only of two elements, that compound is known as binary. Binary compounds can be of two types

1. where two elements are different and only one atom of each element would participate in compound making. some of the examples are:- sodium chloride(one sodium and one chlorine).

2. Where more than one atom of each element participate such as nitrous oxide(two atoms of nitrogen and one of oxygen).

The measurement consists in comparing a selected pattern with the object or phenomenon whose physical magnitude is going to be measured, to find out how many times the pattern is contained in that magnitude. That is, it is about identifying or quantifying a particular characteristic or aspect of a particular object or construct.

Now, a well done measurement has two parts:

-The number gives us information about the quantity of the measurement, or in other words, the magnitude of the measurement and its precision.  

-The units gives us information about the property that is being measured. This is quite important, because a measurement or result with no units is useless.

Note the units may be expressed with letter or symbols, depending on what we are measuring.

A measurement consists of two important parts: a number and a unit. The number provides the quantity, and the unit indicates the standard of measure.

The two parts of a measurement are a number and a unit. For example, if you measure the length of a desk and find it to be 150 cm, '150' is the number, and 'cm' or centimeters is the unit.

The number tells you 'how much', and the unit tells you 'of what'. '150 centimeters' means 150 times the defined length of a centimeter.

Each part is necessary for the measurement to make sense and be useful. Without the number, you wouldn't know 'how much', and without the unit, you wouldn't know 'of what'.

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Answer:

2.0 J

Explanation:

Since the surface is frictionless, we can solve the problem by using the work-energy theorem, which states that the work done on the toy is equal to the kinetic energy gained by the toy:

[tex]W=\Delta E_k[/tex]

where

W is the work done on the toy

[tex]\Delta E_k[/tex] is the kinetic energy gained by the toy

The work done can be calculated as the product between the force applied on the toy and its displacement, so:

[tex]W=Fd=(2.0 N)(1.0 m)=2.0 J[/tex]

Therefore, according to the work-energy theorem, the toy has gained 2.0 J of kinetic energy.

Answer: 2 J

Explanation: Kinetic energy is possessed by a body due to virtue of its motion. A body gains kinetic energy when some work is done on it.

W = Δ K.E.

We know that work is said to be done on a body when a force causes displacement of the body.

W = F.s

It is given that net force on the toy, F = 2.0 N which displaces the toy by, s = 1.0 m.

Hence, work done on the toy, W = 2.0 N × 1.0 m = 2 J which is equal to the kinetic energy gained by the toy.  

We have that Crest ,trough, frequency, wavelength, amplitude you will be able to label the wave in Question.

From the question we are told

Label the parts of a wave the terms : crest ,trough, frequency, wavelength, amplitude

Generally

This is the defined as the vertical distance covered by a wave.

This speaks of lowest point of a wave the inverse of the crest

This is the is defined as the inverse of

This is defined as the peak to peak distance of a wave

This defines the maximum height attained by the wave.

Therefore

With above definition of Crest ,trough, frequency, wavelength, amplitude you will be able to label the graph in Question

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Answer: All apply

The periodic table is an arrangement of the chemical elements in the form of a table, ordered by:

-Their atomic number (number of protons)

-Their configuration of electrons

-Their chemical properties

It was progressively developed over time as the scientific knowledge advanced; for this reason many modifications and corrections might be done in the future.

Its usefulness lies in the fact that it allows the existing elements to be organized in a more structured and coherent way, according to the chemical properties they possess. Dividing the table into rows and columns, which represent the periods and groups or families.

Then, with the location and classification of an element according to its group, we can determine how it acts by knowing its chemical and physical characteristics.

This is how with this configuration can be distinguished 4 sets of chemical elements, according to the ease of their atoms to lose or gain electrons, transforming into ions: metals, semimetals, non-metals and noble gases.

This has helped to predict the existence of various elements that have not yet been discovered, because by elements already located in the table and the periodicity found, there are still empty spaces that indicate the composition of the element that has not yet been found.

In addition, this table helps to simplify in some way the teaching of chemical elements and facilitates their learning, as well as their usage in the development of technological innovations.

The periodic table has greatly benefited society by providing a structured framework for scientists to communicate discoveries, predict and discover new elements, and innovate in technology, particularly in the field of electronics.

Since its creation in the mid-1800s, the periodic table has been instrumental in advancing both scientific understanding and practical applications. One of the key benefits is that it has enabled scientists to communicate chemical discoveries and results more easily, providing a universal language and structure for chemists around the world. Additionally, the periodic table has been crucial in increasing scientists' ability to predict and discover new elements. Through the recognition of patterns and periodic trends, scientists have been able to infer the existence of elements before they were discovered. Furthermore, the periodic table has paved the way for revolutionary developments in technology. It has led to increased knowledge and usage of elements in technological innovations, such as the use of silicon in semiconductors, which are fundamental to today's electronic devices.

Although the periodic table does not directly increase the ability to determine how cations and anions form covalent bonds, since covalent bonds typically involve non-charged atoms, the understanding of periodic trends and properties of elements, e.g., electronegativity and valency, contribute to a better comprehension of chemical bonding in general. It is the insightful organization of elements that allows scientists and engineers to grasp the properties of elements and their compounds, leading to the development and refinement of myriad materials and technologies.

Answer:

period in case 2 is [tex]\sqrt{2}[/tex] times the period in case 1

Explanation:

The period of oscillation of a spring is given by:

[tex]T=2 \pi \sqrt{\frac{m}{k}}[/tex]

where

m is the mass hanging on the spring

k is the spring constant

Therefore, in order to compare the period of the two springs, we need to find their m/k ratio.

We know that when a mass hang on a spring, the weight of the mass corresponds to the elastic force that stretches the spring by a certain amplitude A:

[tex]mg = kA[/tex]

So we find

[tex]\frac{m}{k}=\frac{A}{g}[/tex]

The problem tells us that the amplitude of case 1 is d, while the amplitude in case 2 is 2d. So we can write:

- for case 1:

[tex]\frac{m}{k}=\frac{d}{g}[/tex]

[tex]T_1=2\pi \sqrt{\frac{d}{g}}[/tex]

- for case 2:

[tex]\frac{m}{k}=\frac{2d}{g}[/tex]

[tex]T_2=2\pi \sqrt{\frac{2d}{g}}[/tex]

And by comparing the two periods, we find:

[tex]\frac{T_2}{T_1}= \sqrt{2}[/tex]

So, the period of oscillation in case 2 is [tex]\sqrt{2}[/tex] times the period of oscillation in case 1.

V = speed of the plane with no wind = 250 mph

v  = speed of wind

consider the motion of the plane while traveling with the wind :

V' = speed of plane travelling in the direction of wind = V + v = 250 + v

d' = distance traveled = 300 miles

t' = time taken to travel the distance

time taken to travel the distance is given as

t' = d'/V'

t' = 300/(250 + v)                                           eq-1

consider the motion of the plane while traveling against the wind :

V'' = speed of plane travelling against the direction of wind = V - v = 250 - v

d'' = distance traveled = 200 miles

t'' = time taken to travel the distance

time taken to travel the distance is given as

t'' = d''/V''

t'' = 200/(250 - v)                                           eq-2

Given that :

time taken to travel 300 miles = time taken to travel 200 miles

t' = t''

using eq-1  and eq-2

300/(250 + v)  = 200/(250 - v)

3/(250 + v)  = 2/(250 - v)

750 - 3 v = 500 + 2 v

5 v = 250

v = 50 mph

Hello!

There is actually no 4th law. There is only 3. The gravitational law is not considered the 4th law.

Hope this helps! Have a lovely day! ~Pooch ♥

I think neon because it is all the way to the right

If your atom has a charge of +1, it means you have 1 more proton than electrons. This is because protons have a positive charge and electrons have a negative charge. Because you have 23 protons, and a charge of +1, you have 22 electrons.

Answer:

12,740 N

Explanation:

The weight of the hyppogriff is given by:

[tex]W=mg[/tex]

where

m = 1300 kg is the hippogriff's mass

g = 9.8 m/s^2 is the acceleration due to gravity

Substituting the numbers into the equation, we get:

[tex]W=mg=(1300 kg)(9.8 m/s^2)=12,740 N[/tex]

The answer is 12,740  i just did test

The vector that goes from (0,0) to (1,-3) can be found by subtracting the initial point (0,0) from the terminal point (1,-3). So, the vector that goes from (0,0) to (1,-3) is (1, -3).

The vector that goes from (0,0) to (1,-3) can be obtained by subtracting the initial point (0,0) from the final point (1,-3). The x-component of the vector is the difference in x-coordinates: 1 - 0 = 1.

The y-component of the vector is the difference in y-coordinates: -3 - 0 = -3.

Therefore, the vector that goes from (0,0) to (1,-3) is represented as (1, -3) in the form of (x-component, y-component). Visually, the vector (1, -3) points from the origin (0,0) in the positive x-direction (to the right) by a distance of 1 unit and in the negative y-direction (downward) by a distance of 3 units.

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