Answer:
A)247.4kgm/s b) 3299.0N
Explanation:
The potential energy of the victim = mgh where m is mass, g is acceleration due to gravity and h is height from where the victim fell
Pe = 79*9.81*0.5 = 1/2mv2 (kinetic energy of the motion) v is speed in m/s
v = √9.81 = 3.132m/s
Change in momentum of the victim = m(vi-vf)
Vi is zero and vf is the velocity of impact
Change in momentum = 79*(3.132-0) = 247kgm/s which also the impulse
B) average force x time = impulse = 247
Average force = 247/0.075 = 3299.04N
<span>The plates make up Earth's outer shell, called the lithosphere. (This includes the crust and uppermost part of the mantle.) Churning currents in the molten rocks below propel them along like a jumble of conveyor belts in disrepair. Most geologic activity stems from the interplay where the plates meet or divide.</span>
Answer:
<em>Before the parachute opens: Immediately on leaving the aircraft, the skydiver accelerates downwards due to the force of gravity. There is no air resistance acting in the upwards direction, and there is a resultant force acting downwards. The skydiver accelerates towards the ground.</em>
<em>Once the parachute is opened, the air resistance overwhelms the downward force of gravity. The net force and the acceleration on the falling skydiver is upward. An upward net force on a downward falling object would cause that object to slow down. The skydiver thus slows down.</em>
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I HOPE THIS WILL HELP YOU IF NOT THEN SORRY</h3>
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Answer:
child protective services
Explanation:
amonbgus
combustion of fossil fuels would be the correct answer when dealing with the alteration of the carbon cycle.
