PHYSICS HIGH SCHOOL

What is a purpose in flexibility

Answers

Answer 1

Answer:

Answer:

To prevent from getting injured.

Answer 2

Answer:

it can prevent us from various accident a

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The force of gravity on you is greatest when you are standing _____.a. far above Earth's surface
b. just above Earth's surface
c. on Earth's surface

Answers

The acceleration of gravity at the surface of the Earth is approximately 9.8 meters (32 feet) per second per second. As a result, during free fall, an object's speed rises by around 9.8 meters per second.

Explain about the force of gravity?

The force that binds all masses in the universe together, particularly the pull of the earth's mass on objects that are close to its surface.

The term gravitational force refers to the force that the earth exerts on a body. Examples of motion caused by gravitational force include the downward motion of water in a river, the downward motion of water in a stream, and the upward motion of a ball when it is thrown.

All physical things with mass are drawn to the gravitational force, which can be thought of as an attracting force. It is the known natural force that is by far the weakest. representation in mathematics. The formula for gravitational force is F = G m 1 m 2 r in mathematics.

The answer is on earth surface

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The force of Earth's gravity on you is greatest when you stand as
close as you can to the center of the Earth (but not underground).

From the choices listed, that would be (c).

A fishing boat using sonar to locate fish is employing

Answers

A fishing boat using sonar to locate fish is employing reflection.

an electron in a mercury atom changes from energy level b to a higher energy level when the atom absorbs a single photon with an energy of 3.06eV. Determine the energy of the photon, in joules.

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Hi There! :)

An electron in a mercury atom changes from energy level b to a higher energy level when the atom absorbs a single photon with an energy of 3.06eV.Determine the energy of the photon, in joules.

kg=15000J

1. -------- of an object is the change in velocity per unit time.a) Displacement b) Acceleration c) Average velocity d) Angular velocity.
2. The motion of freely falling body is an example of ----- motion.
a) Uniform motion b) Non -uniform motion c) Uniformly accelerated motion. d) None of these.

Answers

Answer:

Explanation:

acceleration is defined as the rate of change of velocity with time

A scientist studies how sunlight affects a person's skin. Which of the following is a testable question about this topic?A, Does being in the sun make your skin dry?
B. Do people look better when they have a suntan?
C. What is the most enjoyable time to be in the sun?
D. Should children be allowed to lie in the sun?

Answers

Out of the options the one that can be tested is: A) Does being in the sun make your skin dry?

As it can be seen that the results of the other options in the question can vary from person to person. As some might find suntan attractive and some might not. Similarly, some might enjoy the morning time sun whereas some might enjoy the sun in the evening. And in the last option, it is hard to conclude whether children might lie in the sun or not as it merely depends on the individual's resistance power to the sunlight.

Therefore, the correct option is(A).

Learn more about the effects of sunlight on:brainly.com/question/1673834

A. Does being in the sun make your skin dry?

You can test this by putting people in the Sun and seeing hop much dryer their skin is than when they're not in the Sun.

The potential difference between two points, A and B, in an electric field is 2.00 volts. The energy required to move a charge of 8x10^-19 coulomb from point A to point B is

Answers

The energy required to move the given charge from point A to point B is of $1.6 * 10^(-18) \;\rm J$ .

Given data:

The potential difference between the points A and B is, V' = 2.00 V.

The magnitude of charge is, $q = 8 * 10^(-19)\;\rm C$ .

The given problem is based on the work done to shift a charge from one point to another.

When a charge is moved between the two points, then some work is to be done, which gets stored in the form of electrostatic potential energy.
And the mathematical expression for the electrostatic potential energy is,

W = U

W = q × V'

Solve by substituting values as,

$W = (8 * 10^(-19)) * 2.00\n\nW = 1.6 * 10^(-18) \;\rm J$

Thus, we can conclude that the energy required to move the given charge from point A to point B is of $1.6 * 10^(-18) \;\rm J$ .

learn more about the electrostatic potential energy here:

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Answer:

$W_A_B=-1.6* 10^(-18) J$

Explanation:

Let A and B be two points located in a uniform electric field, A being a distance d from B in the direction of the field. The work that an external force must do to bring a unit positive charge q from the reference point to the point considered against the electric force at constant speed, mathematically is expressed by:

$V_B_A=(W_A_B)/(q)$