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It takes the elevator in a skyscraper 3 s to reach its cruising speed of 8.08 m/s. A 78 kg passenger gets abord on the ground floor.
What is the passenger's weight before the elevator starts moving?
What is the passenger's weight while the elevator is speeding up?
What is the passenger's weight after the elevator reaches its cruising speed?
A 0.57-kg air cart is attached to a spring and allowed to oscillate. Find the maximum force exerted on it by the spring
A 73.0-kg parachutist falling vertically at a speed of 6.60m/s impacts the ground, what is the average force exerted on the parachutist by the ground
the speed of a bullet as it travels down the barrel of a rifle toward the opening is given by v -4.30107t22.25105t. the
A ceiling fan with 84cm diameter blades is turning at 61rpm. Assume the fan coasts to a stop 25 after being turned off. What is the speed of tip of a blade 10 s after the fan is turned off.
A catcher catches a 145 g baseball traveling horizontally at 38.0 m/s. How large an impulse does the ball give to the catcher
a 3.00 x 10^-3 kg lead bullet travels at a speed of 2.4 x10^2 m/s and hits a wooden post. what is the increase in temperature of the embedded bullet
Calculate Louise's AMT adjustment for circulation expenses for 2011, 2012, 2013, and 2014. Advise Louise on explain how she could reduce or eliminate the AMT adjustment in 2011.
A 2.00×10^4 kg railroad car is rolling at 4.00m/s when a 5000kg load of gravel is suddenly dropped in. What is the car's speed just after the gravel is loaded
a smaller solenoid is placed inside a larger solenoid so they have the same axis like concentric cylinders. the inner
q1. a gun shoots bullets that leave the muzzle with a speed of 326 ms. if a bullet is to hit a target 172 m away at the
a 2.00 kg block hangs from a spring balance calibrated in newtons that is attached to the ceiling of an elevator.a what
Consider 0.8 grams of air (which may be assumed to be an ideal gas) at 295 K and 1.5 bar trapped in a rigid tank. An electrical heater is operated for 30 seconds. During this time the voltage across the heater is 12 V and 0.6 amps pass through the..
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