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a 100g marble (modeled as a solid sphere with radius 2cm) rolls without slipping down a ramp. It starts from rest and its speed is 1m/s at the bottom of the ramp. How tall is the ramp?
Three forces in the x-y plane act on a 5.80 kg mass: 15.30 N directed at 59o, 12.20 N directed at 170o, Calculate the direction of the resultant force using the same sign convention as above
A 20 {rm kg} child plays on a swing having support ropes that are 2.3 {rm m} long. A friend pulls her back until the ropes are 39.0^circ from the vertical and releases her from rest.
A 2.00-ton automobile is parked at the top of a hill that is 100ft high and inclined 25 degrees with respect to the horizon. find the automobile velocity (ft/s) at the bottom of the hill
How much work is needed to move it at constant speed.
A pipe with a diameter of 2.88 cm is carrying 134 liters/minute of water with an overpressure (gauge pressure) of 3.65 atmospheres. Find the overpressure of the water in the pipe at the top of the building
A 25 g rifle bullet traveling 270 m/s buries itself in a 4.0 kg pendulum hanging on a 3.0 m long string, find horizontal components of the pendulum's displacement
A 34.4-kg crate rests on a horizontal floor, and a 71.8-kg person is standing on the crate. Determine the magnitude of the normal force that the floor exerts on the crate
What is the magnitude T of the tension force acting on one edge of the section while the internal bladder pressure is 2700Pa and each of the four tension forces is directed 6.4° below the horizontal.
A 430g football is lying on the ground, then is kicked and is moving at 25.00 m/s. If the period of the impact was 0.001 s, what was the average force on the ball.
Suppose that the amplitude and frequency of the transverse wave, Find the total vertical distance (in cm) through which the colored dot moves in 3.8 s
a proton and an electron are separated by 3.5 nm, what is the magnitude of the force on the electron and proton
Unpolarized light passes through five successive Polaroid sheets, What is the intensity of the transmitted beam
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