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A 1.30 kg mass on a spring oscillates horizontally with little friction according to the following equation: x=0.0500cos(2.90t) where x is in m and t in s. Find the maximum energy stored in the spring during an oscillation. Find the maximum velocity of the mass.
An ice hockey puck is sliding along the vertical wall as shown on the picture (top view shown). Puck is moving in the horizontal plane only. Find the velocity of the puck at that point
How long after being thrown will the balls collide
The minimum distance required to stop a car moving at 42.0 mi/h is 39.0 ft. What is the minimum stopping distance for the same car moving at 67.0 mi/h, assuming the similar rate of acceleration.
If electrons are accelerated from rest in an electron gun by sending them through a potential difference of 11.0 kV, what is the resulting kinetic energy of each electron?
An electric utility company supplies a customer's house from the main power lines (120 V) with two copper wires, find the power delivered to the customer
A crude model of the human vocal tract treats it as a pipe closed at one end.Find the effective length of the vocal tract in a person whose fundamental tone is 550Hz . Sound speed in air at body temperature is 354 m/s.
A tire of an automobile has a gauge pressure of 30 psi at the top of a mountain, and the air temperature inside the tire is 300K. The atmospheric pressure at the top of the mountain is 1.7 atm.
A stroboscopic photo of a club hitting a golf ball, such as the photo shown in the figure below, was made by Harold Edgerton in 1933. find the average force exerted by the club on the ball
After the Sun exhausts its nuclear fuel, its ultimate fate will be to collapse to a white dwarf state. Calculate the average density of the white dwarf
A nonconducting solid sphere of radius R has a volume charge density that is proportional to the distance from the center. That is, ? = Ar for r R, where A is a constant. (Use the following as necessary: 0, A, r, and R, as necessary.)
A speeder is pulling directly away and increasing his distance from a police car that is moving at 23 m/s with respect to the ground. Find the speeder's speed with respect to the ground
A 22.5-microF capacitor is charged by a 147.0-V power supply, Calculate the energy stored in the inductor at t = 1.30 ms
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