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artcher [175]
3 years ago
5

Explain how newton's third law of motion is at work when you walk

Physics
1 answer:
Jet001 [13]3 years ago
5 0
Action reaction when you push on the ground the ground pushes you back 
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If the shoe has less mass, it will experience _______________ (more, less, the same) friction as it would with more mass.
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More I’m pretty sure but no promises
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Question 2 (1 point)
inysia [295]

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Explanation:

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3 years ago
One man wanted to weigh the air. He blew a balloon and weighed it. Then he blew air out of the balloon and weighed again. The we
raketka [301]

Answer:

Because there's buoyancy force

Explanation:

What is wrong here is that he assumes that gravity is the only force affecting the weight of the balloon on the scale here. In reality there's also buoyancy force which lifts the full blown balloon upwards.

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6 0
3 years ago
An input for of 80 N is used to lift an object weighing 240 N with a system of pulleys. How far must the rope around the pulleys
sammy [17]

Answer:

4.2 m

Explanation:

Note: If energy is conserved, i.e no work is done against friction

Work input = work output.

Work output = Force output × distance,

Work input = force input × distance moved moved.

Therefore,

input force×distance moved = output force × distance moved........................Equation 1

Given: input force = 80 N, output force = 240 N, output distance = 1.4 m

Let input distance = d

Substitute into equation 1

80×d = 240×1.4

80d = 336

d = 336/80

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Thus the rope around the pulley must be pulled 4.2 m

7 0
3 years ago
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