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Jumping up before the elevator hits. After the cable snaps and the safety system fails, an elevator cab free-falls from a height of 33.0 m. During the collision at the bottom of the elevator shaft, a 94.0 kg passenger is stopped in 2.00 ms. (Assume that neither the passenger nor the cab rebounds.) What are the magnitudes of the
(a) impulse and
(b) average force on the passenger during the collision? If the passenger were to jump upward with a speed of 5.00 m/s relative to the cab floor just before the cab hits the bottom of the shaft, what are the magnitudes of the
(c) impulse and
(d) average force (assuming the same stopping time)?
A sealed cubical container 11.0 cm on a side contains three times Avogadro's number of molecules at a temperature of 24.0°C
A train is en route from Chicago to New York at 110km/h when the engineer spots a cow on the track. How far was the train from the cow when the engineer first applied the brakes
In 0.181s, through a distance of 8.05 m, a test pilot's speed decreases from 88.9m/s to 0m/s. If the pilot's mass is 70 kg, how much work is done against his body.
Catapult fires an 800-kg rock with an initial velocity of 100 m/sat a 40° angle from ground. What is the magnitude of the horizontal impulse
A system does 4.3 x10^4 J of work, and 7.7 x10^4 J of heat flows into the system during the process
Explain how do Decisions concerning span of management and the use of committees and coordination techniques affect basic organizational structure
Consider two widely separated conducting spheres, 1 and 2, the second having four times the diameter of the first. What is the ratio of the final surface charge density of spheres
(a) What must the initial speed of the ball be if the pitch is to arrive at the batter exactly 1.00 m above the ground? (b) How long does it take the ball to reach the batter? (c) If there were no gravity, at what angle would the pitch have to be ..
A scuba diver and her gear displace a volume of 65 L and have a total mass of 68 kg. Will the diver sink or float
Dave needs to get groceries from the store, which is a distance of D=2.8km east of his house, What is the direction of Dave's displacement for the entire trip
You are driving along the street at the speed limit (35mph) and 50 meters before reaching a traffic light you notice it becoming yellow. What is your speed as you cross the intersection
Imagine that a hypothetical life form is discovered on our moon and transported to Earth. calculate the heat lost by each body from the vaporization of sweat
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