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Q. An 88 g arrow is fired from a bow whose string exerts the average force of 110 N on the arrow over a distance of 78.00 cm. What is the speed of the arrow as it leaves the bow?
Q. A 75.00 m long train begins uniform acceleration from rest. The front of the train has a speed of 23 m/s when it passes the railway worker who is standing 180m from where the front of the train started. What would be the speed of the last car as it passes worker?
what is the volume of an iron atom. What is the ratio of the mass density of girder A to the mass density of girder B.
How long did it take the apple to hit Newton after falling off? Draw a graph of velocity vs
Two charged bodies exert a force of .145N on each other. If they are now moved so they are one fourth as far apart, what force is exerted.
what is the magnitude and direction of the force. explain the magnitude and direction of the force she exerts on you?
Four 6.50 kg spheres are located at the corners of a square of side 0.68 m. Calculate the magnitude and direction of the total gravitational force exerted on one sphere by the other three.
What is the magnitude of the maximum torque. What is the utmost load for this crane at an angle of 15° with the horizontal.
If light enters the window from outside at 23.0° to the normal, at what angle to normal does it exit the window on the inside.
In a nuclear experiment a proton with kinetic energy 1.5 MeV moves in a circular path in a uniform magnetic field. What energy (in MeV) must (a) an alpha particle (q = +2e, m = 4.0 u) and (b) a deuteron (q = +e, m = 2.0 u) have if they are to circ..
A u-tube with constant cross section is partly filled with water. Engine oil of density 0.8g/cm3 is poured into the right arm (without mixing) until the water level rises 2.0cm. The length of the oil column is then.
A bowling ball with a mass of 6.8 kg strikes a stationary pin that has a mass of 1.6 kg. After the collision, the pin flies forward (in the positive x direction) with a speed of 7.3 m/s, and the ball continues forward at 3.2 m/s (in the positive x..
0.20g of hydrogen gas are held in a rigid container. The temperature of the gas is changed from 50 K to 80 K. How much heat is needed.
A bucket of water with a mass of 2kg is attached to a rope that is wound around a cylinder. The cylinder has a mass of 3 kg and is mounted horizontally on frictionless hearings. The bucket is released from rest.
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