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A 1.9 kilogram mass is attached to a spring with a force constant of 59 N/m. If the mass is released with a speed of 0.37 m/s at a distance of 7.7 centimeter from the equilibrium position of the spring, find its speed when it is halfway to the equilibrium position?
a rugby player runs with the ball directly toward his opponents goal along the positive direction of an x axis. he can
Years ago, a block of ice with a mass of about 20 kg was used daily in a home icebox. how much heat did a block of ice that size absorb
Miles Tugo is camping in Glacier National Park. In the midst of a glacier canyon, he makes a loud holler. He hears an echo 1.22 seconds later. How far away are the canyon walls
potentiometer used for the determination of internal resistance of a 1.5 v cell. the balance point of the cell in open
a 1kg object falls form a height h240m with initial velocity of 14ms penetrating into sand a distance of .2m. find the
An inductor used in a dc power supply has an inductance of 12.0 H and a resistance of250 Ω. It carries a current of0.300 A. What is the energy stored in the magneticfield?
Furthermore, describe any differences in kinetic energy and gravitation potential energy among these balls while they hit the ground.
An elevator at the CN Tower in Toronto, Canada, is able to lift 2000 kg (including the load and the car) to a height of 350 m in 60.0 s. find the minimal power required for the motor of the elevator
a tortoise can run with a speed of 0.15 ms and a hare can run 20 times as fast. in a race they both start at the same
question the frequency of a steam train whistle as it approaches you is 538hz. after it passes you its frequency is
an infinite plane has a surface charge of -5cm2. what is the magnitude of the electric field 3 meters from the plane?
A rocket burns fuel at a rate of 200 kg/s and exhausts the gas at a relative speed of 4.0 km/s. Find the thrust of the rocket
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