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A moon rock is thrown upward with initial velocity 5.0 m/s. After 5.0 s it has a downward velocity of 3.0 m/s. What is the acceleration due to gravity on the Moon
A small object begins a free-fall from a height of H = 87.0 m at t0 = 0 s. After %u03C4 = 2.20 s, At what height from the ground will the two objects first meet
A 0.2 kg object is suspended from a spring with a spring constant of K = 10 N/m. What is the potential energy of the system
A charge of -2.655uC is located at (2.660m , 4.621m ), and a charge of 1.495uC is located at (-2.574m , 0). Find the electric potential at the origin
Astronomers have recently discovered a new planet in a faraway solar system, with a radius of roughly 380 km. calculate the minimum density of the planet
A saw blade has a mass of 0.5 kg and a radius of 10 cm and is rotating at 300 rpm. What frictional torque acts on the saw blade as it slows to a stop
A runaway railroad car, with mass 30 x 10^4 kg, coasts across a level track at 1.5 m/s when it collides with a spring loaded bumper at the end of the track, What is the maximum displacement of the s
A mass of 0.4 kg, hanging from a spring with a spring constant of 80 N/m, is set into an up-and-down simple harmonic motion. What is the potential energy stored in the spring
A man begins pushing a box from rest up a ramp angled at 22 degrees from horizontal, exerting a constant force of 500N, with what average force will it hit the ground
A block (m=.75kg) is released from the top of a frictionless inclineed plane that has a height of 1.5m, How much energy was lost in the collision
Two cars traveling with the same speed move directly away from one another. What is the speed of the cars
Using Gauss' Law, find the electric field (magnitude and direction) between the cylindrical shell and the rod. The electric field will depend on the distance r from the central axis of the solid rod
A thick-walled, non-conducting spherical shell has a positive uniform volume charge density p bounded by radii r1 and r2>r1. With V=0 at infinity, Find the net charge of the shell
Scenario: You and a friend, who is twice your size, decide to slide down identical water slides at the same time, Who will have the greater momentum at the bottom
A motorcycle has a constant speed of 20.9 m/s as it passes over the top of a hill whose radius of curvature is 125 m. Find the magnitude of the centripetal force
A motorcycle is traveling up one side of a hill and down the other side. Determine the maximum speed that the cycle can have
The horizontal constircted pipe, can be used to meausre flow velocitites in an imcompressible fluid. Find the speed of the fluid near the right hand
A bus contains a 1440 kg flywheel ( a disk that has a 0.670 m radius ) and has a total mass of 9400 kg. Calculate the angular velocity of the flywheel
Calculate the moment of inertia of a skater given the following information. THe 65 kg skater is approximated as a cylinder that has a .110 m radius
You have determine that it takes 3s for a toy car ti travel through the distance of 162 cm. calculate the average speed of the toy car
Three electric charges QA= q, QB = -q, and QC = -2q are located at the points, what is the value of the electric potential at the origin
Consider a circular loop of wire lying in the same plane but to the north of a very long straight current directed eastward. Find the direction of the current induced in the loop
You have a grindstone ( a disk) that is 84.0 kg, has a .307-mradius, and is turning at 104.0 rmp, How many turns wil the stone make before coming to rest
in a simplified roller bearing, the inner cylinder has a radius of 1.0 cm and is stationary. What is the angular speed of the small cylinders
In an experiment using an inclined track with a dynamics cart, the computer failed, find the cart's acceleration, mass, and the tension in the string connecting the cart to the accelerating 50g mass