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A 2,500-kg car moving east at 10.0 m/s collides with a 3,000-kg car moving north. The cars stick together and move as a unit after the collision, at an angle of 31.0° north of east and at a speed of 5.30 m/s. Find the speed of the 3,000-kg car before the collision.
=_______ m/s north
A ski jumper takes off at an angle 20 degrees above the horizontal with a speed of 30.0m/s, Calculate the time of flight
How much work is done on the toboggan by the tension force? Explain how much work is done if the same tension is directed parallel to the snow?
A 48 kg cart is moving across a frictionless floor at 1.5 m/s. A 68 kg boy, riding in the cart, jumps off the cart so that he hits the floor with zero velocity. What is the velocity of the cart after the boy jumped
As an example, consider a coil of diameter 2.00 cm with 72.0 turns that is rotated about an axis perpendicular to the field at a rate of 20.0 Hz. If the maximum induced emf in the coil is 6.00 V, find out the strength of the magnetic field.
A roller coaster track has a hill with a circular curve of radius r =15 m. What is the normal force on the 60-kg passenger
A 94-kg fullback is running at 3.7m/s to the east and is stopped in 0.85 s by a head-on tackle by a tackler running due west. Calculate the original momentum of the fullback
A baseball pitcher delivers a fastball that crosses the plate with an angle of 5.77 degrees relative to the horizontal and a speed of 87.9 mph. What is the magnitude of the impulse received by the ball
The objective focal length is 2.00 cm and they eye piece focal length is 4 cm. Calculate the location of the final image and determine lateral magnification
In a U-tube there is some water and on top of the water in one of the tubes there is oil (water and oil don't mix). Find the density of the oil
A student's car stalls right in front of a speed bump while she is on her way to physics class, If is 12.7°, what is the size of the force pulling the car in lbs
A uniformly dense 50 cm rod with a total mass of 0.2 kg is standing perfectly vertically on a horizontal surface. What is the magnitude of the angular acceleration of the rod
The density of ice is 917 kg/m3, and the density of sea water is 1025 kg/m3. What is the weight of the heaviest bear that the ice can support without sinking completely beneath the water
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