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A 2.2 kg object slides down a frictionless track (starting 0.35 m above the ground) to a horizontal surface where it collides elastically with a 0.3 kg mass. 2.8 m later the 0.3 kg mass hits a k=16 N/m spring and compresses is 5 cm. What is the coefficient of friction on the horizontal surface?
A 2 kg ball moving towards the West with a speed of 10m/s collides with a 4 kg ball moving towards the North with a speed of 3m/s. Find the velocity of the combination after collision
q1. a system consists of a uniform electric field of 42.6 nc directed in the positive x direction together with a
an ice chest at a beach party contains 10 cans of soda at 2 deg c. each can of soda has a mass of 0.36 kg and a
A car rounds a circle of radius 180 m , going at 14.5 m/s. What's the car's acceleration if its speed is constant. Compute the new acceleration if the speed is increasing at a rate of 2.4 m/s^2
If i have a hollow copper sphere that has an outer diameter of 20.00 cm that is floating so that everything is just submerged in a bucket of water
A 295 Kg piano slides 4.1 m down a 30 degree incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. The effective coefficient of kinetic friction is .40.
A thin circular disk of radius R rotates with angular speed w, about an axis through the centre of the disc and perpendicular to the plane of the disc.
A .060-kg tennis ball, initially moving 5.50 m/s, has a head on collision with a .090-kg ball initially moving in the same direction, determine the Speed and direction of each ball after collision
A block with mass 0.5 kilograms is covering a hole in a horizontal table. From below the table a bullet with mass 5 grams is fired straight up. Calculate the speed with which the bullet hit the block
Which of the following photons has the greatest energy?
A 5.0 kg box, starting from rest, slides down a 5.0 m high frictionless hill, then across a 2.0 m wide horizontal surface, and finally hits a horizontal spring with spring constant 500 N/m. find the speed of the box just before hitting the spring
Two objects with masses of 2.50 kg and 5.90 kg are connected by a light string that passes over a frictionless pulley, Determine the distance each object will move in the first second of motion if both objects start from rest
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