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Makovka662 [10]
4 years ago
14

In order for acceleration to occur, something must be..

Physics
1 answer:
hoa [83]4 years ago
8 0
Acceleration occurs whenever the direction or the speed changes
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you are sitting at the center of a large turntable at an amusement park as it is set spinning freely. you decide to crawl toward
larisa [96]

You are sitting at the center of a large turntable at an amusement park as it is set spinning freely. You decide to crawl towards the edge of the turntable. Rotational speed will decrease

There is no external torque

hence , the angular momentum of the table is conserved

L (initial) = L ( final)

since , L = m*v*r

where

m = mass

v = velocity

r = radius

If  the person is crawled towards the outer rim, then the rotational inertia of the turntable will increase. In order to conserve the angular momentum , its rotational speed will decrease as mass and radius cannot be altered .

To learn more about torque here :

brainly.com/question/19104073

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7 0
1 year ago
Maaf sebelumnya ,bisa minta tolong kerjakan tugas saya? saya harus mengerjakan tugas Fisika yang lain . tolong bantu 4 nomer saj
AlladinOne [14]
Sorry cant not answer this question
8 0
3 years ago
A block with mass M = 3 kg is moving on a flat surface with constant speed v1 = 12 m/s. A bullet with mass m = 0,1 kg is shot at
adelina 88 [10]

The speed does the block move after it is hit by the bullet that remains stuck inside the block will be 23.7 m/sec and it takes 12.07 seconds to stop.

<h3>What is the law of conservation of momentum?</h3>

According to the law of conservation of momentum, the momentum of the body before the collision is always equal to the momentum of the body after the collision.

Apply the law of conservation of momentum principle;

m₁v₁+m₂v₂cosΘ =(m₁+m₂)V

3 kg ×  12 m/s +  0,1 kg × 400 m/s cos 20° = (3+0.1)V

36 + 40 cos 20° = 3.1 V

V=23.7 m/sec

The time it takes to stop when the friction coefficient between the block and the surface is 0.2 is found as;

V = u +at

V = 0+ μgt

23..7=0.2× 9.81 ×t

t=12.07 sec

Hence, it takes 12.07 seconds to stop.

To learn more about the law of conservation of momentum refer;

brainly.com/question/1113396

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4 0
3 years ago
Which action would increase the strength of the electric force between the ballon and the water
OLga [1]

Complete question is;

Which action would increase the strength of the electric force between the balloon and the water?

A. Holding a magnet near the stream of water

B. Holding the balloon closer to the stream of water

C. Holding a magnet near the balloon

D. Moving the balloon farther away from the stream of water

Answer:

B. Holding the balloon closer to the stream of water

Explanation:

When we take a charged balloon near water, what happens is that it makes electrons to be pushed away which in turn leaves the area to be positively charged. This area is now attracted to the balloon and thus the strength of the electric force between the balloon and the water is increased.

8 0
3 years ago
What three characteristics do geologist look for when observing a rock sample
lord [1]
Texture hardness and color
5 0
3 years ago
Read 2 more answers
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