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Q. A 2 kg object attached to a spring moves without friction (b = 0) and is driven by an external force given by the expression F = 4.60sin (2pi*t), where F is in newtons and t is in seconds. The force constant of the spring is 20.0 N/m.
(1) Find the resonance angular frequency of system.(2) Find the angular frequency of driven system.(3) Find the amplitude of motion.
A 0.174kg softball is pitched horizontally at 26m/s. the ball moves in the opposite direction at 38m/s after it is hit by the bat.
The loaded cab of an elevator has a mass of 2.8 x 10^3 kg and moves 214 m up the shaft in 23 s at constant speed. At what average rate does the force from the cable do work on the cab.
A 151 kg rocket moving radially outward from Earth has a speed of 5.03 km/s when its engine shuts off 226 km above Earth's surface. (a) Assume negligible air drag; find the rocket's kinetic energy when the rocket is 535 km above Earth's surface. (b) ..
The bullet penetrates into the block and stops due to its friction with the block. The compound system of the block plus the bullet rises to a height of 11 cm along a circular arc with a 20 cm radius A bullet with a m1 = 30.0 g mass is fired horizont..
Compute Earth's gravitational force on the Shuttle astronauts while orbiting at an altitude of 220 miles (or 354 km) above Earth's surface.
Some air is flowing from a wider tube to narrower. There is a difference in height of the liquid in the two sides of the U-shaped tube. Why is there such a difference in height.
What average force is required to accelerate 7 gram pellet from rest to 125 m/s over a distance of .8 m along the barrel of a rifle.
Find the electric field at the position of the electron. What is the potential difference in volts between the plates.
The two liquids do not mix. What is the difference in height between the top surface of glycerine and top surface of the alcohol.
A student has two ramps, both of which are at an angle 32°. Ramp 1 is frictionless and ramp 2 has friction. The student also has two blocks, one for each ramp.
A rotating cylinder about 12.00 km in length and 8.00 km in diameter is designed to be used as a space colony. With what angular speed must it rotate so that the residents on it would experience the same acceleration because of gravity on Earth.
What is Rosie's power output. A long, straight wire carries a current of 44 A. The magnetic field produced by this current at a certain point is 8.0 x10-5 T. How far is the point from the wire.
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