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A 2 kg cart has a spring with K = 5000 N/m attached to its front, parallel to the ground. This cart rolls at 4m/s toward a stationary1 kg cart.
a) Find the speed of all carts after the collision?
b) Find the maximum compression of the spring through the collision?
Find out the energy dissipated by friction. Find the coefficient of kinetic friction between the tires and the road.
The truck is parked on the platform of a weight scale. Explain by how much does the scale reading exceed the weight of the truck and sand?
Give the force exerted on the bag, to validate your reply.
When you walk toward a mirror you see your image approaching you. If you walk at 2 m/s, how fast do you and your image approach each other
An inventor claims to have a heat engine that has an efficiency of 40% when it operates between a high temperature reservoir of 150? C and a low temperature reservoir of 30? C. This engine:
A square with sides of length L=.1 m has a point charge of 2 microC at each of its four corners. Find the magnitude of the force acting on any one of the charge
You bike at 10.5 m/s directly away from your neighbor's trumpet sound and toward the sound of another neighbor's trombone, What frequency is the trombonist producing
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
A projectile is fired at such an angle from the horizontal that vertical component of its velocity is 49 m/s. The horizontal component of its velocity is 61 m/s.
In a slow-pitch softball game, a 0.200 kg softball crossed the plate at 16.0 m/s at an angle of 45.0° below the horizontal. Determine the impulse applied to the ball
the planet mars requires 2.35 years to orbit the sun which has a mass of 2 times 1030 kg in an almost circular
a transparent oil with index of refraction 1.29 spills on the surface of water index of refraction 1.33 producing a
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