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(a) You wish to determine the height of the smokestack of a local coal burning power plant. You convince a member of the maintenance crew to mount the support for a simple pendulum at the top of the stack and you suspend a 1.00 kg mass that just misses the ground at its lowest point from the pendulum cord. If the period of the pendulum is 35.3 s, determine the height of the smokestack.
m
(b) If you had the ability to take this pendulum to the moon, where the acceleration due to gravity is 1.67 m/s2, what would you expect the period of the pendulum to be?
s
Monkey first notices a lion attacking when the lion is 12.5 m away and moving toward the monkey at a speed of 5 m/s. How long does the monkeys escape last
suppose that no heat is lost to the surroundings, what is the situation when termal equilibrium is reached.
A movable piston having a mass of 7kg and a cross-sectional area of 6 cm2 traps 0.2 mol of an ideal gas in a vertical cylinder. The piston slides without friction in the cylinder. The outside of the cylinder is kept at atmospheric pressure, 1.013×..
You're viewing a pair of green (wavelength=550nm) butterflies on a tree branch. What is Rayleigh's minimum angle for resolution
When a person inhales, air moves down the bronchus (windpipe) at 15 cm/s. The average flow speed of the air doubles through a constriction in the bronchus.
a railroad car o.f mass 2.25 x 10^4 kg is traveling east 5.50 m/s and collides with a railroad car of mass 3.00 x 10^4 kg traveling west 1.50 m/s, find the velocity of the railroad cars
q1. two bicycle tires are set rolling with the equivalent initial speed of 5.0 ms along a long straight road and
Find the magnitude of total displacement of the object
A compact disk spins with angular velocity 40.8rad/s. The player is turned off, and 2.10s later the CD has stopped. Find its average angular acceleration
A 650 kg weather balloon is designed to lift a 4600 kg package. What volume should the balloon have after being inflated with helium 0 degrees Celsius and 1 atm pressure to lift the total load.
A generator consists of 23 loops, each with an area of 0.010m^2 located inside a uniform magnetic field of 2.0T. What is the rms voltage
a 100kg person sits 2.0m from the pivot on a seesaw. a second person sits 3m from the pivot on the opposite side. What is this persons mass
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