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3 years ago

The amount of a good or service a

Physics

1 answer:

ratelena [41]3 years ago

5 0

Answer:

I can't understand you're que... plzz write in a correct way..

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how does a sprinter sprint what is the forward force on a sprinter as she accelerates. where does that force come from

NARA [144]

On the starting blocks, sprinters use their feet to push backward. The blocks respond by pressing forward with a force equal to this with their feet.

<h3>What drives the sprinter forward?</h3>

Vertical forces must be larger than the pull of gravity in order to assist the sprinter in moving forward as gravity is pushing him or her downward. The propulsive force is the force that propelled the runner forward.

<h3>Basketball players must jump straight up into the air, but how?</h3>

An interaction diagram and a free-body diagram should be included in your explanation. The player pushes down on the ground, which pushes up against him in return. As a result of his push being stronger than gravity, the player accelerates upward.

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8 0

1 year ago

A 19-year old soccer player extends their right knee from an initial angle of 20o to 140o in 2 s. If this movement began from re

Mandarinka [93]

Answer: 32π/9 rad/s²

Explanation: initial angular displacement = 20°, final angular displacement = 140°, average time = 2s.

We need to convert the angular displacements to radian.

Recall that 2π = 360°, hence 20° = (20 × 2π)/360 = π/9 rad

Converting 140° to radian we have that

140° = (140 × 2π)/360 = 7π/9

Initial angular displacement = π/9 rad

Final angular displacement = 7π/9

Average angular velocity = change in angular displacement /time

Average angular velocity = 7π /9 - π/9/2

Average angular velocity = (8π/9)/2

Average angular velocity = 16π/9 rad/s

Average angular acceleration = average angular velocity / time taken

Average angular acceleration = (16π/9)/2

Average angular acceleration = 32π/9 rad/s²

4 0

3 years ago

At one end of a production line, Isaac puts peaches into cans on a conveyor belt. He fills 18 cans per minute. As soon as Isaac

AURORKA [14]

Answer: Long answer...

<em>Explanation:</em> As soon as Isaac has filled 670 cans on the conveyor belt, Albert starts putting lids on the cans at the other end of the production line. As Albert finishes closing each can, he moves up along side the conveyor belt to meet the next can. Albert puts lids on 50 cans per minute.

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3 years ago

Energy can be transformed from one form to another. The diagram shows one such process. Which energy transformation is represent

alexandr1967 [171]

The answer is A:

nuclear to thermal and radiant

7 0

4 years ago

Read 2 more answers

What are igneous intrusions and extrusions

spayn [35]

Igneous intrusions form when magma cools and solidifies before it can reach the surface. An extrusion consists of extrusive rock; which forms above the surface of the crust.

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3 years ago