Because of negative side the direction of Electrostatic force will be right to left that means to the left
Magnitude of Electrostatic force will be = 1.0667 N
What is electrostatic force ?The electrostatic force is an attractive and repulsive force between charged particles . The electric force between stationary charged bodies conventionally known as electrostatic force .
q1 = –4.0 µC
q2 = +6.0 µC
r = 0.45 m
k= 9 * 10 ^ 9
(E) Electrostatic force = k *q1* q2 / r^2
E = (9 * 10 ^ 9) *( –4.0) * ( +6.0) / (0.45)^2
E = - 1066.67 * 10 ^ (-3)
Electrostatic force = - 1.0667 N
Because of negative side the direction of Electrostatic force will be right to left that means to the left
magnitude of Electrostatic force will be = 1.0667 N
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What is empirical evidence and what is it not
the soft-tissue lining of oyster and clams creates pearls. is a pearl a mineral?
Final answer:
Pearls, created by mollusks like oysters and clams, consist of calcium carbonate but they are not considered minerals. They are organic gemstones formed by the secretion of nacre around an irritant, which is an organic process distinct from the formation process of inorganic minerals.
Explanation:
The soft-tissue lining of oysters and clams, known as the mantle, has the capacity to create pearls. Pearls are formed when a foreign substance, typically a grain of sand, becomes trapped between the mantle and the shell. The mollusk secretes layers of calcium carbonate in the form of nacre, or mother of pearl, which coats the irritant and over time develops into a pearl.
Pearls are not considered minerals; they are organic gemstones created within a living organism. While pearls consist largely of calcium carbonate (CaCO3), which is a mineral component, their organic origin and formation process distinguishes them from true minerals that are inorganic and naturally occurring with a definite chemical composition and crystalline structure.
Calcium carbonate is the primary substance in both pearl and the shells of most mollusks. It's also worth recognizing the cultural and commercial significance of pearls in decoration and jewelry.
A double slit apparatus is held 1.2 m from a screen. [___/4] (a) When red light (λ = 600 nm) is sent through the double slit, the interference pattern on the screen shows a distance of 12.5 cm between the first and tenth dark fringes. What is the separation of the slits? (b) What will be the difference in path length for the waves travelling from each slit to the tenth nodal line?
A. To solve for part A, we use the formula of Young’s double slit equation:
x = λ L m / d
Where,
x = distance between adjacent dark lines or fringes = 12.5 cm = 0.125 m
λ = wavelength of light = 600 × 10^-9 m
L = distance from the two sources of light to the screen = 1.2 m
m = number of fringes = 10 (tenth) – 1 (first) = 9
d = separation of slits = unknown
Rearranging the equation in terms of d and plugging in the values:
d = λ L m / x
d = (600 × 10^-9 m) (1.2 m) (9) / 0.125 m
d = 5.184 × 10^-5 m
d = 51.84 μm
B. The formula for path difference is:
path difference = (2 m + 1) (λ / 2)
path difference = (2 * 9 + 1) (600 × 10^-9 m / 2)
Which trait shared by dolphins and bats possibly lead to the evolution of echolocation in these two animal groups?
Answer:
the need to move quickly through dark environments
Explanation:
Dolphins and Bats are those creature who uses echolocation in the path which is one property which give them edge in night because they can easily locate things which any other creature face difficult to locate.
In echolocation what bat and dolphins do is the emit ultra sonic waves which gets deflected from the object and from the deflection they get to know the position of the objects.
what are the characteristics and phases of the moon
Convert 11 ppm into a percent
To convert 11 parts per million (ppm) into a percent, multiply 11 by 0.0001% to get 0.0011%.
To convert 11 parts per million (ppm) into a percent, you need to understand that one ppm is equivalent to 0.0001%. Knowing this, the conversion can be done by multiplying the number of parts per million by 0.0001%.
Step 1: Write down the value in ppm which is 11 ppm.
Step 2: Multiply the ppm value by 0.0001% to convert it to a percent.
11 ppm times 0.0001% = 0.0011%
Therefore, 11 ppm is equal to 0.0011 percent.
What happens too baking soda when you heat it up?
Heating baking soda causes it to decompose and release carbon dioxide, especially in the presence of moisture and acids, facilitating the leavening process in baking. This reaction demonstrates the essential role of acid-base interactions in cooking, with the mixture of baking soda and vinegar acting as a common example by producing carbon dioxide and neutralizing the solution's pH.
Explanation:When you heat up baking soda, which is chemically known as sodium bicarbonate (NaHCO3), it undergoes a decomposition reaction, especially when moistened. Upon heating, it releases carbon dioxide gas (CO2). This reaction is crucial in baking as it helps dough and batter to expand, creating a soft and airy texture in baked goods. The presence of an acid, such as vinegar (acetic acid), lemon juice, or even ingredients like honey or cocoa, can significantly increase the amount of carbon dioxide produced during heating.
During the baking process, as long as the environment is acidic, sodium bicarbonate reacts with the acids present to produce carbon dioxide, water, and a salt. This release of gas contributes to the leavening (rising) of the dough. It's interesting to note that the reaction starts at a temperature as low as 60°C (140°F) and is generally complete at around 75°C (167°F). This behavior underscores the importance of promptly baking doughs and batters after mixing to maximize the leavening effect before the gas escapes.
Furthermore, the mixing of vinegar and baking soda is a classic example of this reaction, which not only visibly demonstrates the production of carbon dioxide through bubbling but also results in the solution turning more neutral. Initially, the mixture has an acidic pH due to the vinegar, but as baking soda neutralizes the acid, the pH increases, becoming more alkaline. This neutralization reaction is a cornerstone of many baking processes, showcasing the critical role of acid-base reactions in culinary science.
objects that exhibit projectile motion follow what kind of path
Answer:
Parabolic
Explanation:
The projectile motion is the example of two dimensional motion under the influence of gravity.
The general equation of projectile motion is
y = x tan theta - gx^2/ 2u^2 cos^theta
It is the quadratic equation in x which shows that it is the equation of a parabola.
what are the two main areas of physical science
Physics and chemistry are the two major branches of physical science. Both types of physical science are concerned with the investigation of matter.
What is physical science?In juxtaposition to life science, physical science is a branch of natural science that studies non-living systems.
It, in turn, has many branches, each referred to as a "physical science," which are referred to collectively as the "physical sciences."
Physical sciences are academic bodies of knowledge that seek to discover the underlying laws of nature, which are frequently written in mathematics.
It refers to a group of disciplines that includes astronomy, chemistry, materials science, and physics.
Aside from intellectual development, physical science fosters reasoning ability and logical reasoning in individuals.
Thus, physical science is divided into several categories, including physics, astronomy, and chemistry. Physical science can be applied in a variety of careers.
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Which statement best describes how work and power are different
To find work we need to know force and distance; to find power we need to know force and velocity.
i hope this helps :))
How many stars are in Pegasus and Cassiopeia together?
Answer:26
Explanation:
how does the moon manipulate the tides on the earth
If the force of gravity between a book of mass 0.50 kg and a calculator of 0.100 kg is 1.5 × 10-10 N, how far apart are they?
If the force of gravity between a book of mass 0.50 kg and a calculator of 0.100 kg is 1.5 × 10⁻¹⁰ N. The book and the calculator are approximately 0.1493 meters (or 14.93 centimeters) apart.
To find the distance (r) between the book and the calculator, we can use the formula for the force of gravity between two masses:
F = (G × m₁ × m₂) / r²
Now, rearrange the formula to solve for r:
r² = (G × m₁ × m₂) / F
r² = (6.674 × 10⁻¹¹ × 0.50 × 0.100 ) / (1.5 × 10⁻¹⁰ N)
r² = (3.337 × 10⁻¹²) / (1.5 × 10⁻¹⁰)
r² = 0.02225 m²
Now, take the square root of both sides to find the distance (r):
r = √0.02225 m²
r = 0.1493 meters
So, the book and the calculator are approximately 0.1493 meters (or 14.93 centimeters) apart.
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A force of 88 N is used to move a couch 2.1 m. How much work is done?
A. 184.8 J
B. 41.9 J
C. 32.3 J
D. 211.2 J
Final answer:
The work done on the couch when moving it with a force of 88 N over a distance of 2.1 m is calculated using the formula work = force × distance, resulting in 184.8 J.
Explanation:
The question involves calculating work done, which in physics is defined as the product of the force applied to an object and the distance over which the force is applied, provided the force is applied in the direction of motion. For the couch being moved with a force of 88 N over a distance of 2.1 m, the work done can be calculated using the formula: work = force × distance. Therefore, the work done is (88 N) × (2.1 m) = 184.8 J. Thus, the correct answer to the question is A. 184.8 J.
Which of the following affects the amount of total cholesterol in your body?
Answer: If you are referring to this question.
Which of the following affects the amount of total cholesterol in your body?
heredity
diet
regular exercise
all of the above
Explanation:
The answer should be the answer choice (all of the above) !
hope this helps!!!! :D
For adults, the RDA of the amino acid lysine is 12 mg per kg of body weight. How many grams per day should a 78kg adult receive?
The bending of light as it passes from one medium to the next is
what was Galileo’s contribution to the study of motion?
Galileo Galilei was the first to systematically study force and motion.
He began doing so by conducting experiments to search for the cause of motion.
- Marlon Nunez
Which expression of distance uses SI units? A. 30 miles B. 16 kilograms C. 24 feet D. 500 meters
Answer:
D) 500 meter
Explanation:
As we know that SI unit to measure the distance is meter
so here the SI unit of the measurement of the distance must be in meter units
so it is given as
D) 500 meter
while other options are
A) 30 miles : this is also measurement of distance but it is not in SI unit
B) 16 kilogram : this is measurement of mass
c) 24 feet : this is also measurement of distance but not in SI units
Kai takes a hamburger off of the grill and puts a piece of cheese on it. Explain how and why the cheese melts when Kai puts it on the hamburger.
The piece of cheese melts when it’s placed on the hamburger because conduction occurs. The hamburger is warmer than the cheese, so thermal energy is transferred from the hamburger to the cheese, causing it to melt.
You are to create a story for a child of 5-6 years old. You will explain the brain and its functions to them. You need to use the following terms and explain their functions in simple terms. Use the format of a story to keep the child interested, and be sure to use illustrations. Add characters (Dora, Superman, etc.) to make the information fun.
This response uses a fun story to explain the functions of different parts of the brain to children, emphasizing their roles in daily activities.
The Brain Adventure
Once upon a time in Brain City, there were three special friends: Smarty the Cerebrum, Memory the Hippocampus, and Swift the Brainstem. Smarty helps us think and learn, Memory stores our favorite stories and experiences, while Swift keeps our heart beating and helps us run fast when we play soccer.
Our brain is like a superhero team, with each part playing a different role to keep us healthy and happy. So, next time you kick a soccer ball or learn a new dance move, remember to thank your brain friends for making it all possible!
Which of the following statements is true? After one half-life, 75% of the original radionuclide will remain. After two half-lives, 50% of the original radionuclide will remain. After four half-lives, 12.5% of the original material will remain. After three half-lives, 25% of the original material will remain.
Why is it important for scientist to use the international system of units
Which of the following is the tendency for a material to oppose the flow of electrons and change electrical energy into thermal energy?
A. resistance
B. volts
C. Ohms
D> electric current
Answer:
The correct answer is option A.
Explanation:
Resistance :It is a measure of the opposition against the flow of electric current in an electric circuit.It is also defined as ratio of voltage applied to the current. It is measured in Ohms.
[tex]Resistance(R)=\frac{Voltage(V)}{Current(I)}[/tex]
Voltage is defined as work done to move an unit charge from one point to another against the electric field.it is measured in Volts.
Current is defined as flow of electrical charges through an electrical circuit.It is measured in ampere.
Two protons are moving up when they enter a magnetic field that points towards you. What happens to the motion of the particles?
Answer: The motion of the given particles towards right.
Explanation:
In the given problem, two protons are moving up when they enter a magnetic field that points towards you. The force exerts on a moving charge in a magnetic field. This force is Lorentz force.
Lorentz force will act on the two protons. Force will be perpendicular to the directions of the velocity and magnetic field. The force will be maximum when the magnetic field and the velocity of the charge are in perpendicular direction.
The expression for Lorentz force is as follows;
[tex]F=q(v\times B)[/tex]
Here, q is the charge, v is the velocity and B is the magnetic field.
The cross product gives the direction of the proton. It can be determined by the right hand rule. The right hand rule states that the thumb points in the direction of the motion of the charges, forefinger points in the direction of field and the middle finger points in the direction of the force.
Therefore, the protons move towards the right.
In multiverses, does a person do the exact same thing in all of the different dimensions? And is the person a 100% identical to the other version in the other parallel universes?
Final answer:
In the Many-Worlds Interpretation of quantum mechanics, all possible outcomes of quantum events occur in their own separate universes, leading to the existence of parallel universes. Therefore, a person does not do the exact same thing in all different dimensions, and a person is not 100% identical across these parallel universes. Differences arise from the unique outcomes of quantum events in each universe.
Explanation:
The concept of multiverses and parallel universes is a fascinating and complex topic in the field of theoretical physics, particularly under the Many-Worlds Interpretation (MWI) of quantum mechanics. This interpretation suggests that all possible outcomes of quantum measurements do indeed happen, but each outcome occurs in its own separate universe, or "parallel universe." According to this theory, with every quantum event, the universe 'splits' into a set of parallel universes, each representing a different possible outcome of that event, leading to a nearly infinite number of parallel universes.
Therefore, in some of these universes, a version of 'you' could indeed be doing something completely different than what you're doing right now, and with potentially slight or significantly different personal attributes or life circumstances.
In the context of whether a person is 100% identical across different dimensions, the answer is generally no. Given the practically infinite number of diverging paths at each quantum event, it is highly unlikely that there would be a universe where your counterpart is exactly the same as you in every possible way.
Small differences can arise from different outcomes of events, leading to potentially significant divergences over time. Thus, in another parallel universe, versions of individuals might share some core characteristics or memories but differ in various aspects due to the unique sequence of events they have experienced in their respective universes.
A boat takes off from the dock at 2.5 m/s and speeds up at 4.2 m/s2 for 6.0 s. How far is the boat traveled?
An arrow is shot from a bow at 20.0 m/s at an angle of 65º above the horizontal. The arrow leaves the bow at a height of 1.80 m. At what height will it strike a wall that is 10.0 m away? (Remember to connect the two motions of the arrow using time.)
The height it will strike a wall that is 10.0 m away will be 16.38 meters.
How to find the heigth of the wall?In vertical motion the arrow will be accelerating so, we can use equation of motion, but first we need to find initial vertical and horizontal velocity
Horizontal velocity
cos65 = x( horizontal)/20
x = 8.45m/s
Now we can calculate time after which it strike the wall
8.45=10/t
t = 1.18 s this speed in horizontal will remain constant
The vertical intial velocity
sin65 = y(vertical)/20
y=18.13 m/s
Then use the equation of motion to calculate height
s=ut+1/2 at^2
s=(18.13)(1.18)+ 1/2 (-9.8)(1.18^2)
s=21.40-6.822
s=14.58 m
Since it is already 1.80 above ground
The height of wall be =14.58+1.80=16.38
Therefore, the height it will strike a wall that is 10.0 m away will be 16.38 meters.
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The case whereby sound waves are heard at either a higher or lower pitch due to an object's motion is called:
the Doppler effect
shock waves
beats
resonance
Answer:
the Doppler effect
Explanation:
The doppler effect is what we called the effect that happens when the wavelength or frequency of a sound changes because the observer is moving relatevily form the object, could be moving closer or moving further away, but the wavelenght and the frequency changes alongside with the movement.
Which device requires an electric power supply?
assuming this question:
Which device requires an electric power supply?
A. A turbine
B. A generator
C. A permanent magnet
D. A motor
The answer would be D. a motor
Explanation: a motor turns electrical energy into mechanical energy so it needs an electric power supply