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A "seconds" pendulum is one that goes through its equilibrium position once each second. (The period of the pendulum is 2.000 second). The length of a second pendulum is 0.9927 meter at Tokyo and 0.9942 meter at Cambridge, England. Find the ratio of free-fall accelerations at these two locations?
A disk with mass m = 5.4 kg and radius R = 0.47 m hangs from a rope attached to the ceiling. What is the period of precession for this gyroscope
The initial angle of the ball’s motion off the tee is 29.0° above the horizontal. If the tee level is 17.0 m above the level of the fairway, explain how far east of the tee does the ball hit the fairway?
weights are sometimes added to the arms of a boomerang. what effect would this have on the spinning of the boomerang?
A capacitor is used as energy storge device. the material between the plates of the capacitor has a certain resistance leading to a gradual slef-discharge. What is the fraction of the initial energy lost in the first hour
A child is looking at a beetle that is 25 millimeter (10 inches) away, with the unaided eye. Determine how much larger will the beetle appear
1. give the definition of electrical circuit. draw the simplest electrical circuit and mark the directions of
An object is thrown straight up with an initial velocity of 4.6m/sand an acceleration of gravity of 9.8. Find the distance the object traveled from the persons hand
Suppose you are a researcher doing such an experiment in a location where the earth's field is 50 ?T at a 60 ?angle below horizontal. What is the proper orientation of the coil
An excited argon ion in a gas discharge radiates a spectralline of wavelength 450 nm. The transition from the excited to theground state that produces this radiation takes an average time of10^-8 s. What is the inherent width of the spectral lineΔ..
in the operation of a hydraulic jack suppose one has area 0.0200 m2 and the other area 0.0500 cm2. the two pistons are
A cylinder with a height of 1.30 and an inside diameter of 0.110 is used to hold propane gas (molar mass 44.1 ) for use in a barbecue. It is initially filled with gas until the gauge pressure reads 1.80×106 and the temperature is 22.0. The temperatur..
Standing waves on a 1.7m long string that is fixed at both ends are seen at successive frequencies of 36 Hz and 54Hz A) What is the fundamental frequency B) What is the wave speed
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