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A particle moves along a vertical straight line with an acceleration of a = 4(v)^3/4 when t=1 sec. it's displacement x= 10 ft and its velocity v = 6 ft/sec. Calculate the displacement, velocity, and acceleration at t = 3 seconds.
Two traveling sine waves, identical except for a phase difference of phi, What is the phase difference between the two waves
what is the difference between the energy stored in a spring that is stretched 0.40 m and the energy stored in the same spring when it is stretched 0.20 m?
Just after opening a parachute of negligible mass, a parachutist of mass 82.5 kg experiences an instantaneous upward acceleration of 1.15 m/s2. Find the force of the air on the parachute
What is the direction of E for points. find the balls initial speed.
A bucket filled with water exerting a force of 529N is hanging from a rope that is wound around a 0.05 m radius stationary cylinder. If cylinder does not rotate and the bucket hangs straight down, what is the magnitude of torque the bucket produce..
It is common to see birds of prey rising upward on thermals.The paths they take may be spiral-like. calculate the speed of the bird relative to the ground
Two identical parallel-plate capacitors, each with capacitance C, are charged to potential difference ?V and then disconnected from the battery. Find the total energy of the system of two capacitors before the plate separation is doubled
An object slides down a 30o angle slope from rest at a height of 15.0 m. compute the object's speed at the bottom of the slope
A hollow spherical shell has mass 8.00 and radius 0.225. It is originally at rest and then rotates about a stationary axis that lies along a diameter with the constant acceleration of 0.905. What is the kinetic energy of the shell after it has turned..
A 3.60-kg object is attached to a spring and placed on frictionless, horizontal surface. A horizontal force of 9.0 N is required to hold the object at rest when it is pulled 0.200 m from its equilibrium position, Where does this maximum speed occur
In some places, insect "zappers," with their blue lights, are a familiar sight on a summer's night. how many turns are in the secondary coil
climbers attempting to cross a stream place a 345 kg log against a vertical frictionless ice on the opposite side the log log is inclined at 27 degree, what is the maximum mass for a climber and pack to cross without the log slipping
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