As you climb a mountain, your ears "pop" because of the changes in

(a) In which direction does your eardrum move as you climb up?
inward
outward
eardrum does not move

Give your reasoning.

I think the eardrum moves outward because the further you go away from the earth's center the less pressure there is. The eardrum was at an equilibrium on the ground but because the external pressure is less the pressure from the inside pushes on the eardrum pushing it outward.atmospheric pressure.

(b) In which direction does your eardrum move as you climb down?
inward
outward
eardrum does not move

Give your reasoning.

Going down is almost the opposite of going up. The eardrum moves inward from its outward position because the closer you get to the earth's center the more pressure is exerted on the eardrum. The closer you get to the ground the eardrum begins to return to its equilibrium state, neither inward or outward.

I have also figured this one out as well. Thanks!

it is correct.

How much force is needed to accelerate a 50-kg rider and her 250-kg motorcycle at 5 m/s 2?

a.) 1000 N

b.) 125 N

c.) 500 N

d/) 1500 N

F = ma

total mass = 300kg
acceleration = 5

F = 300 x 5 = 1500N

How much force is needed to accelerate a 50-kg rider and her 250-kg motorcycle at 5 m/s2?

1500

1 answer

How much force is needed to accelerate a 50-kg rider and her 250-kg motorcycle at 5 m/s2?
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