Answer:
Gravity: downwards
Air drag and air-pressure on the inner surface of the the parachute: Upwards
Explanation:
- If a sky-diver is in the final stages of his descend with open parachute such that the wind is calm and it does not blows him laterally.
- In such a condition the air resistance in the form of drag and the pressure force due to the air captured in the parachute are acting in the upward direction which balance the force of gravity on the body. But this situation may occur momentarily and then again the diver must begin to slowly descend.
I think its A- They're unaffected by positive self talk
Answer:
Acceleration is towards the center of the earth
Explanation:
khan
Answer:
A inductor, an resistor, and a battery are connected in series as in Figure The switch is closed at Find the voltage drop across the resistor (a) at and (b) after one time constant has passed. Also, find the voltage drop across the inductor at and after one time constant has elapsed.
Answer:
2 times
Explanation:
Given:
u = 10 m/s
v = 20 m/s
To Find:
Factor of change in Momentum = ?
Solution:
Final Momentum = mv
Final Momentum = m(20)
Final Momentum = 20m
Initial Momentum = mu
Initial Momentum = m(10)
Initial Momentum = 10m
Therefore, Factor of change in Momentum = 20m / 10m = 2 times
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