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Q1. Why do cities directly east of the Rockies (such as Denver, Colorado) receive more precipitation than cities east of Sierra Nevada (as in Reno and Lovelock, Nevada)?
Q2. A 19 g bullet is shot into a 5270-g wooden block standing on a frictionless surface. The block, with the bullet in it, acquires a velocity of 2.4 m/s. compute the velocity of the bullet before striking block.
During normal operation, a computer's hard disk spins at 7200 rpm. what is the average angular acceleration of the hard disk
An electric motor with a 2.7-hp output drives a machine with an efficiency of 35%. What is the energy output of the machine per second
An electron moves in a circular path perpendicular to a magnetic field of magnitude 0.225 T, find the radius of the circular path
Motor M draws in the cable with an acceleration of 4 ft/s^2, measured relative to the 200 lb mine car. Determine the acceleration of the car and the tension in the cable. avoid the mass of the pulleys.
A bomb at rest at the origin of an xy-coordinate system explodes into three pieces. Just after the explosion, one piece, of mass 2.0 kg, what is the magnitude of the velocity of the third piece
Illustrate what is the average emf that is induced in this coil if it is in a region where B=2.0 T upward, and the coil's plane is perpendicular to B?
A diver 22m deep in 12°C fresh water exhales a 0.8 cm diameter bubble. What is the bubble's diameter just as it reaches the surface of the lake, where the water temperature is 25°C? Hint: suppose that the air bubble is always in thermal equilibriu..
An electron and a proton are each placed at rest in a uniform electric field of magnitude 546 N/C. Compute the speed of each particle 52 ns after being free.
A 280 g block on a 50.00 cm-long string swings in a circle on a horizontal, frictionless table at 70 rpm.
calculate the altitude of geosynchronous satellite, calculate the speed needed to move this mass from the surface fo the Earth to the altitude of 3R_E
A gas cylinder with a tight-fitting, movable piston contains 200 cm3 of air at 1.0 atm. What is the volume of gas at this depth
A hydrogen atom in its ground state is excited to the n = 5 level. It then makes a transition directly to the n = 2 level before returning to the ground state. What are the wavelengths of the emitted photons
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