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A 2.3 kilogram small particle is in simple harmonic motion in one dimension and moves according to the following equation, with t in sec. x = (4.7m)cos[(π/4rad/s)t - π/6rad]
(a) Find at what value of x is the potential energy of the particle equal to half the total energy?
(b) Determine how long does it take the particle to move to this position x from the equilibrium position?
A softball, of mass m = 0.183 kg, is pitched at a speed v0 = 26.9 m/s. Due to air resistance, by the time it reaches home plate it has slowed by 11.9%. Calculate the average force of air resistance
Ed rode a bicycle thatwas pulled by an automobile. In this way Ed rode his bike 200.0 min 6.83 seconds. Find the wheel's angular acceleration and angular displacement for a point on one of the wheels during this ride
A block of unknown mass, m, is brought into the configuration shown. It was measured that upon release the block shot upward a maximum distance of 2m. Calculate the mass of this block? The upper spring has a natural length of 1m, and the lower spr..
Bats emit sounds of frequencies around 35.0 kHz and useecholocation to find their prey. If a bat is moving at the speed of12.0 m/s toward an insect at an air temperature of20.0oC. What frequency is heard by the bat from the reflectedsound?
An electron is moving in a concentric circular orbit inside asolenoid of radius 4.89 cm, in such a manner that it grazesthe inside surface of the coil at all the points of its orbit. Thespeed of the electron is 9,820 m/s, and the solenoid has3.50×..
two shortwave radio antennas broadcast identical in-phase signals at the same frequency. the transmitters are 176.0 m
A 31.2cm diameter coil consists of 17 turns of circular copper wire 1.70mm in diameter. The resistivity of copper is 1.68×10-8 Ohm m. Determine the current in the loop
It is determined by immersing a crown in water that its volume is 26inc^3=4.2x10^-4m^3. What would its weight be if it were made of pure gold
To stop a car, first you require a certain reaction time to begin braking; then the car slows under the constant braking deceleration. Suppose that the total distance moved by your car during these two phases is 50.6 m when its initial speed is 79..
A piece of copper wire has a resistance per unit length of 5.95 10-3 ?/m. Find the magnetic field strength at the center of the coil
You are an astronaut (m = 90 kg) and travel to a planet that is the same mass and size as Earth, What is your apparent weight at the equator of this planet
It was a dark and stormy night, when suddenly you saw a flash of lightning. how far away was the lightning bolt
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