2 years ago

What does a Battery and a human have in common?

Physics

1 answer:

Elena L [17]2 years ago

8 0

Both are objects and contain matter and mass. both are made of atoms, and produce reactions.

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Two parallel plates of area 0.155 m2 are separated by 0.00100 m. What is their capacitance?

KonstantinChe [14]

Answer:

1.37 x 10^-9

Explanation:

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3 years ago

A hockey puck wont slide very far on concrete or asphalt, but it will slide for a very long time on ice. Why is this?

Ilya [14]

When hockey players push the puck along the ice it slides causing heat which melts the ice causing the friction against the ice to be less.

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3 years ago

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A ball of moist clay falls 17.3 m to the ground. It is in contact with the ground for 24.0 ms before stopping. (a) What is the a

gizmo_the_mogwai [7]

Answer:

Acceleration, $767.08\ m/s^2$

Explanation:

Given that,

Height from a ball falls the ground, h = 17.3 m

It is in contact with the ground for 24.0 ms before stopping.

We need to find the average acceleration the ball during the time it is in contact with the ground.

Firstly, find the velocity when it reached the ground. So,

$v^2=u^2+2ah$

u = initial velocity=0 m/s

a = acceleration=g

$v=\sqrt{2gh} \\\\v=\sqrt{2\times 9.8\times 17.3} \\\\v=18.41\ m/s$

It is in negative direction, u = -18.41 m/s

Let a is average acceleration of the ball. Consider, v = and u = -18.41 m/s.

$a=\dfrac{v-u}{t}\\\\a=\dfrac{0-18.41}{24\times 10^{-3}}\\\\a=767.08\ m/s^2$

So, the average acceleration of the ball during the time it is in contact is $767.08\ m/s^2$ .

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3 years ago

what is an example of a environmental issue and how was it impacted by humans. please explain in detail where this issue is occu

Burka [1]

An example of an environmental issue is the acid rain in Germany. The acid rain is caused by pollution. Pollution that was caused by car putting harmful gases into the air is the main reason that there is acid rain in Germany. This is a problem because the acid rain is destroying Germany’s forests. Hope this helped!

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3 years ago

A. 2kg B. 6kg C. 8kg D. 14kg

Sati [7]

Answer:

Explanation:

We know the force is (16N-12), which is 4N, and we know the acceleration is 2 m/s^2. Meaning, we can solve the formula m = F / a (mass equals force divided by acceleration), and we get 2kg.

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3 years ago