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A cart of a mass 300 kg is pushed up a track at an angle of44 degrees from the bottom to a position that is 30m higher thanthe bottom in a time of 25 seconds. There is no friction.
What is the velocity at the bottom?
If the cart began its upward journey to the top by being propelledfrom a spring that as compressed a distance of 4m, then what is thespring constant?
The force shown in the attached figure is the net eastward force acting on a ball. The force starts rising at t = 0.012 s, falls back to zero at t = 0.062 s, Find the area of a nearly equally sized triangle
The length of a beam increases by 1.35mm when its temperature is raised from 37.83oC to 96.34 oC. What is the length of the beam at the initial temperature
questionhuman blood contains plasma platelets and blood cells. to part plasma from other components centrifugation is
The drawing shows a square, each side of which has a length of L = 0.25 m. Find the electric potential energy of a third charge
Given that the current, natural abundance of U-235 is .72 atom-percent, and neglecting U-234 content of uranium, how long ago was the abundance of U-235 equal to 4 atom-percent?
Rocket mass 5000kg emits a mass of 10kg at 2000m/s at right angles...What is velocity of rocket after expulsion?
A physics professor is pushed up a ramp inclined upward at an angle 35.0^\circ above the horizontal as he sits in his desk chair that slides on frictionless rollers. The combined mass of the professor and chair is 84.0kg . He is pushed a distance ..
Water flows through a 2.7cm -diameter pipe at 2.1m/s. If the pipe narrows to 1.7cm diameter, what is the flow speed in the constriction
A diver springs upward from a board that is 3.15 meters above the water. Determine her initial speed as she leaves the board
Calculate the maximum KE of electrons emitted from a photo surface of work function 3.2 ev for the incident radiation of wavelength 300 nm
Suppose that a 1.00 cm3 box in the shape of a cube is perfectly evacuated, except for a single particle of mass 1.23 x 10^-3 g. Find the temperature inside the box
A block of weight 36.1 N is hanging from a rope. The tension in the rope is 48.5 N, pulling upward on the block. What is the magnitude and direction of the acceleration of the block?
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