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Imagine that Earth is struck by a meteor with a mass of 5.23 x 1015 kg, and a speed of 8100 m/s. What speed would such a meteor give Earth in a head-on collision?
Calculate change in kinetic energy
The brakes of a truck cause it to slow down by applying a retarding force of 7710 N to the truck over a distance of 1050 m. What is the work done by this force on the truck
A uniform thin disk (I=1/3ML^2) of length L and mass M is pivoted at one end. It is held horizontal and released. Find the angular acceleration of the stick immeidately after it is released
A space station, in the form of a wheel 100m in diameter, rotates to supply an "artificial gravity" of 3.7m/s2 for persons who walk around on inner wall of the outer rim. Find out the rate of rotation of the wheel (in revolutions per minute) that ..
Two ice skaters, Daniel (mass 65.0 kg) and Rebecca (mass 45.0kg), are practicing. Daniel stops to tie his shoelace and,while at rest, find direction of Daniel's velocity after the collision
An object 2.0mm high is placed 12cm from a convex mirror of radius of curvature 12c, Determine the image distance using the mirror equation 1do+1di=1f
A wheel starts to rotate with constant acceleration and in 1minute performs 1000 rotations. Find acceleration and final speed of the wheel
What is size of the gravitational force on the moon
A 4.20 kg sphere makes a perfectly inelastic collision with a second sphere that is initially at rest, What is the mass of the second sphere
A particle having charge q = +2.30 µC and mass m = 0.0100 kg is connected to a string that is L = 1.80 m long, Determine the speed of the particle when the string is parallel to the electric field
A 13.30 kg crate is pulled by an 181N force (parallel to the incline) up a rough incline. Assume that the incline makes an angle of 31.80° with the horizontal and that the coefficient of kinetic friction is 0.436.
A thin film of polystyrene is used as an antireflective coating for fabulite, What is the minimum thickness of film required, Assume that the wavelength of the light in air is 510 nanometers
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