A mass of 8 kg. moves at a rate of 14.3m/ sec. what is the KE developed by the mass

Answers

Answer 1

Answer: KE = 0.5 m v^2
= 0.5 * 8 * (14.3)^2
KE = 817.96 joule

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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

To learn more about force of gravity refer to:

brainly.com/question/2537310

#SPJ2

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).

Which does more work, a force of 500 N moving through 10 m or a force of 100 N moving through 40 m?

Answers

Explanation:

To determine which force does more work, we can calculate the work done by each force using the formula:

Work = Force × Distance

For the first scenario:

Work = 500 N × 10 m = 5000 N·m

For the second scenario:

Work = 100 N × 40 m = 4000 N·m

Therefore, the force of 500 N moving through 10 m does more work, with a total of 5000 N·m.

a moving company is called into a building and asked to relocate 520 bricks to a location 15 meters above the ground if each brick is 4 kilograms what amount of work will be needed to accomplish the task

Answers

Wow ! I'm sweating just thinking about it.

The amount of work required is the additional potential energy

that the bricks will have when they're all up at the higher location.

Increase of potential energy = (mass) x (gravity) x (increase in height)

The total mass is (520 bricks) x (4 kg/brick) = 2,080 kilograms

Potential energy = (2,080 kg) x (9.8 m/s²) x (15 m)

Potential energy = 305,760 Joules.

Grab your hat, put on your sunscreen, and get busy.

Answer:

Work done to lift one brick = 4 Kg x 9.8 m/sec 2 x 15 m = 588 Joules. Then work done to lift 520 bricks = 520 x 588 = 305.760 j

A skier starting from rest accelerates in a straight line down a 43,000 m slope at 1 m/s. How fast were they moving after 5 s?

Answers

Answer:

5m/s

Explanation:

The skier accelerates at 1 m/s, then, the acceleration is:

$a=1(m)/(s^2)$

to find the speed after 5 seconds you use the following formula:

$a=(v-v_o)/(t)$

but vo = 0m/s because the skier is at rest at the beginning.

You do v the subject of the formula:

$v=at=(1(m)/(s^2))(5s)=5(m)/(s)$

hence, the velocity is 5m/s

In a laboratory experiment, an ultrasound detector located at D is used to measure the distances of two moving objects, P and Q. At a certain moment, P and Q are located as shown in the diagram. What is distance PQ?. a) 6.82. b)5.66. c)4.74. d)4.24. e)3.89. .

Answers

Triangle PDQ has:

Side "p" is opposite Angle P

Side "d" is opposite Angle D = 45º + 23º = 68º

Side "q" is opposite Angle Q

Use the Law of Cosines:

d² = p² + q² − 2 • p • q • cos(D)

d² = (4.24)² + (4.24)² − 2 • (4.24) • (4.24) • cos(68º)

d² = 2(4.24)² − 2(4.24)² • cos(68º)

d² = 2(4.24)² • [ 1 – cos(68º) ]

d = 4.74 ft

The distance PQ is 4.74 feet.

Calculations and Parameters:

Triangle PDQ has:

Side "p" is opposite Angle P
Side "d" is opposite Angle D = 45º + 23º = 68º
Side "q" is opposite Angle Q

If we use the Law of Cosines:

d² = p² + q² − 2 • p • q • cos(D)

d² = 2(4.24)² • [ 1 – cos(68º) ]

d = 4.74 ft

Answers

The answer is all of the above because an ecosystem is how organisms and their environment interact. Population is animals, niche is and organism, and the habitat is the environment.

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