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3 years ago

If you are given force and time, you can determine power if you can know

2 answers:

8 0

The answer would be A, because power is defined as the rate of doing work. Hence power = work / time then you obtain watts. Work is the product of force and displacement (distance). Hence in formula, w = F x s.

Mamont248 [21]3 years ago

4 0

Answer:

joules/energy.

Explanation:

power is defined as the rate of work. Hence power=work/time, then you obtain Watts.

Work is the product of force and displacement.

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How much heat is absorbed by 60 kg of copper (c=385 J/kg K) when it is heated from 10C to 60 C?

In-s [12.5K]

The amount of heat absorbed by the metal copper can be directly solved using the formula:

Q = m c ΔT

Q = 60 kg * 385 J / kg K * (60 – 10) K

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4 years ago

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3 years ago

You are working on a loading dock at UPS. You are instructed by your supervisor to move 20 boxes—each of which has a weight of 1

zhuklara [117]

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you have patience with me and I will call back tomorrow morning to discuss.

Explanation:

the train leaves and a couple hours of the speech and the other one in my future so I'll have to call them tomorrow to see if you can block them for me happy.

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3 years ago

Explain how a projectile might be modified to decrease the air resistance impacting its trajectory.

Vitek1552 [10]

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3 years ago

If the graph shown is a position-time graph of an object moving at constant velocity, what is the velocity of the object? Assume

belka [17]

Answer:

C.) v = 50 m/s

Explanation:

The relationship between position vs. time graph and velocity is that the derivative (slope) of the position vs. time graph gives you velocity. In other words, find the slope to get the velocity.

Select two arbitrary points. I'll choose (3s, 225m) and (0s, 75m).

Now use the slope equation:

$v = \frac{y_{2} - y_{1} }{x_{2} - x_{1}} =\frac{225 - 75}{3-0} = 50 m/s$

v = 50 m/s

Hopes this helps!

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3 years ago