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A 60.0 kg person running at an initial speed of 3.25 m/s jumps onto a 120 kg cart that is initially at rest. The person slides on the cart's top surface and finally comes to rest relative to the cart. The coefficient of kinetic friction between the person and the cart is .375. Friction between the cart and the ground can be neglected. Find the final speed of the person and cart relative to the ground.
If there are two point along the x-axis, positive q to the right and -q to the left of the orgin. Both with the distance a/2 from the orgin, Find the electric field at that point without using derivatives
A hotel elevator ascends 240 m with a maximum speed of 5.8 m/s. Its acceleration and deceleration both have a magnitude of 1.0 m/s2.
The passengers in a roller coaster car feel 50% heavier than their true weight as the car goes through a dip with a 28 m radius of curvature, What is the car's speed at the bottom of the dip
A daredevil on the motorcycle leaves the end of a ramp with a speed of 36.0 m/s. If his speed is 34.20 m/s while he reaches the peak of the path, what is the maximum height that he reaches? Ignore friction and air resistance. In meters
A quarter circle of electric charge with a radius of 2.5 m has a uniform charge density of +0.7x10^-6 C/m. At the center of the circle is located a +0.3C charge
1. a spring with negligible mass stretches 34.0 cm when a 144 g gram mass is suspended from it. now i suspend a mass
A rock is dropped in a large tank of benzene (n=1.5) and sinks to the bottom of the tank. what is the actual depth of the rock
a hydraulic jack has an in[put piston area of 2 cm^2 and an output piston area of 18 cm^2. What will be the pressure on the oil
A negative charge (-q) with a mass of 0.29 kg is dangling vertically on a string. Directly below this charge, is a charge with same amount of charge, but with the opposite sign (+q). When it is located 22.74 cm below the charge on the string, the ..
Camera A has a lens with an aperture diameter of 8.30mm, What exposure time should be used with camera B in photographing the same object with the same film if this camera has a lens with an aperture diameter of 23.5mm
A hollow sphere of inner radius 7.1 cm and outer radius 9.7 cm floats half submerged in a liquid of density 510 kg/m3. Calculate the density of the material of which the sphere is made
Presume a spherical planet P has a uniform density of 4.72 x 10^3 kg/m^3 and a radius R = 3604km. For a parcel that weighs 64N on the surface of the spherical Earth.
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