3 years ago

The ice sheet on antarctica has uniform depth true or false

Physics

1 answer:

Darina [25.2K]3 years ago

5 0

I believe the answer would be True.

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You are working out on a rowing machine. Each time you pull the rowing bar (which simulates the oars) toward you, it moves a dis

tangare [24]

Answer:

56.86153 N

Explanation:

t =Time taken

F = Force

Power

$P=\frac{W}{t}\\\Rightarrow W=P\times t\\\Rightarrow W=77\times 0.96\\\Rightarrow W=73.92\ Joules$

Work done

$W=F\times s\\\Rightarrow F=\frac{W}{s}\\\Rightarrow F=\frac{73.92}{1.3}\\\Rightarrow F=56.86153\ N$

The magnitude of the force that is exerted on the handle is 56.86153 N

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3 years ago

Which action will increase the gravitational force between two objects?

schepotkina [342]

The answer is D have a nice day!

8 0

3 years ago

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Solve each of these problems, remembering to include formula, calculations, and units!

KATRIN_1 [288]

Answer:

I nEeD heLp

Explanation:

HelP

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3 years ago

A toy car has 2A of current if the car runs one four 1.5V batteries, what is the resistance?

lesya [120]

Answer:

3 ohm

Explanation:

Resistance = Voltage/Current

= 6.0/2

= 3 ohm

5 0

3 years ago

Starting from rest, a 2.1x10^-4 kg flea springs straight upward. While the flea is pushing off from the ground, the ground exert

Rainbow [258]

Answer:

a) The flea's speed when it leaves the ground is $v=1.88m/s$

b) The flea move $18cm$ upward while it is pushing off

Explanation:

Knwons

Mass $m=2.1\times 10^{-4} kg$ , Work $W=3.7\times 10^{-4} J$ and Force $F=0.41N$

a) Here we are going to use $W=\frac{1}{2} mv^{2}$ , so $v=\sqrt{\frac{2W}{m} }= \sqrt{\frac{2(3.7\times 10^{-4} J)}{2.1\times 10^{-4} kg} }=1.88m/s$

a) Here we are going to use $W=mgh$ , so $h=\frac{W}{mg}= \frac{3.7\times 10^{-4} J}{(2.1\times 10^{-4} kg)(9.8m/s^{2})} =0,1797m$ or $18cm$ approx.

7 0

3 years ago