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A ship carrying freshwater to a desert island in the Caribbean, hasa horizontal cross-sectional area of 2600m^2 at thewaterline. When unloaded, the ship rises 8.50m higher in tehsea. How much water was delivered?
The angular speed of an automobile engine is increased from 1540.0 rev/min to 1865.0 rev/min in 17.0 s. How many revolutions does the engine make during this time
A 146 gram baseball is hit toward the left by a bat. The magnitude of the force the bat exerts on the ball as a function of time is shown in the figure below (Figure 1) .
A 243-g ball falls vertically downward, hitting the floor with a speed of 2.48 m/s, Calculate the magnitude of the change in the ball's momentum
In outer space, a constant net force of magnitude 140N is exerted on a 30.4kg probe initially at rest. What acceleration does this force produce in m/s2
For the infinite square well problem an electron spends 40% of its time in the n=3 state and 60% of its time in the n=5 state. What is the average energy of the electron
Cliff and Will are carrying a uniform 2.0m board of mass 74kg. Will is supporting the board at the end while cliff is 0.6m from the other end, Find the normal forces exerted by Cliff and Will
Two point charges Q1 = +4.55 nC and Q2 = ?1.65 nC are separated by 50.0 cm. (a) What is the electric potential at a point midway between the charges? (b) What is the potential energy of the pair of charges? What is the significance of the algebrai..
A board lies on top of 2 uniform cylinders that lie on a fixed plane inclined at an angle theta. what is the acceleration of the board
A 5.00 X 10-2 kg mass with a charge of +0.75 mC is hung by a thin insulated thread. A charge of -0.9 mC is held 0.15 meters directly to right so that the thread makes an angle q with the vertical. What is the angle q and the tension in the string.
q1. a block is placed at the end of the frictionless ramp and is pulled up the ramp through a solid ball on the end of
Kieran takes off down a 50m high, 10° slope on his jet-powered skis. The skis have a thrust of 320 N. The combined mass of skis and Kieran is 50 kg (the fuel mass is negligible). Kieran's speed at the bottom is 40 m/s. What is the coefficient of k..
A ball of moist clay falls 17.7 m to the ground. It is in contact with the ground for 15.0 ms before stopping. What is the average acceleration of the ball
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