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Maslowich
2 years ago
7

A neutral object has:

Physics
1 answer:
mars1129 [50]2 years ago
3 0

Answer:

c. Only neutrons.

hope it helps :)

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Which of the following elements is a metalloid?
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Germanium

Explanation:

Germanium is a chemical element that is grayish white metalliod

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This type of energy is obtained through food
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If you double the velocity of a moving object, how is it's momentum affected?
Allushta [10]
Well momentum is = to Mass*Velocity so let's use an example to figure this out

If I weighed 50kg and I was jogging at 3m/s then I broke into a run at 6m/s how will me momentum be affected?
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6m/s*50kg=300

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8 0
3 years ago
A soccer ball is dropped from a height of 2 m and falls to the floor.
lara31 [8.8K]

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4 0
2 years ago
A ball is whirled on the end of a string in a horizontal circle of radius R at const v. By which one of the following means can
denpristay [2]

Answer:

D

Explanation:

Centripetal acceleration is the square of velocity divided by radius:

a = v² / r

Velocity is equal to angular velocity times radius, so this can also be written as:

a = ω² r

And angular velocity is 2π divided by the period, so:

a = (2π / T)² r

We can use these two equations to determine which scenario results in double the centripetal acceleration.

A) Keep the radius fixed and increase the period by a factor of two.

(2π / 2T)² r

1/4 (2π / T)² r

1/4 a

B) Keep the radius fixed and decrease the period by a factor of two.

(2π / ½T)² r

4 (2π / T)² r

4a

C) Keep the speed fixed and increase the radius by a factor of two.

v² / 2r

1/2 a

D) Keep the speed fixed and decrease the radius by a factor of two.

v² / ½r

2a

Only D doubles the centripetal acceleration.

8 0
3 years ago
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