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2 years ago

Which of the following most accurately describes the current understanding of energy? *

Physics

1 answer:

Stolb23 [73]2 years ago

6 0

Answer:

Explanation:

Because it is the principle of conservation of energy which is proved and verified

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To test the performance of its tires, a car

Rom4ik [11]

The coefficient of static friction is 0.222

Explanation:

In order for the car to remain in circular motion, the frictional force must be able to provide the necessary centripetal force. Therefore, the car will start skidding when the two forces are equal:

$\mu mg=m\frac{v^2}{r}$

where the term on the left is the frictional force, while the term on the right is the centripetal force, and where

$\mu$ is the coefficient of static friction

m is the mass of the car

g is the acceleration of gravity

v is the speed of the car

r is the radius of the track

In this problem, we have:

r = 564 m

v = 35 m/s

$g=9.8 m/s^2$

And re-arranging the equation for $\mu$ , we can find the coefficient of static friction:

$\mu = \frac{v^2}{gr}=\frac{35^2}{(9.8)(564)}=0.222$

Learn more about friction:

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#LearnwithBrainly

5 0

2 years ago

Which of the following statements would NOT result in an eclipse? a. The Earth is positioned directly between the Sun and the Mo

vovangra [49]

c. The Moon is positioned directly between the earth and the sun is the statement that does not result in an eclipse.

Explanation:

The Sun is completely blocked in a solar eclipse because the Moon passes between Earth and the Sun.
it is just the right distance away from Earth, the Moon can fully blocks the Sun's light from Earth's perspective

3 0

3 years ago

A beam of light bends when it passes from air into water, and then bends even more when it passes from water into glass. What ca

Nikolay [14]

Answer:

Certain Things Make Light Bend?

Explanation:

Transparent Objects/ things can make light bend when entering through it.

4 0

2 years ago

What is a Pulley why is it used

aleksley [76]

Answer:

A simple pulley is a wheel with a rope that allows you to pull one end and have it lift whatever is on the other end. A modern, common example of this is a crane, often used in construction.

Explanation:

4 0

2 years ago

Consider two objects (Object 1 and Object 2) moving in the same direction on a frictionless surface. Object 1 moves with speed v

d1i1m1o1n [39]

1) A) Object 1 has the greater momentum

The magnitude of the momentum of an object is given by:

$p=mv$