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The motor of a ski boat generates an average power of 5.94 × 104 W when the boat is moving at a constant speed of 18.8 m/s. When the boat is pulling a skier at the same speed, the engine must generate an average power of 8.41 × 104 W. What is the tension in the tow rope that is pulling the skier?
A radio station broadcasts at a frequency of 600,000 Hz. Know that radio waves have a speed of 3.00 x 10^8m/s, what is wavelength of these waves.
A 0.700-kg ball is on the end of a rope that is 1.30 m in length. The ball and rope are attached to a pole, determine the tangential speed of the ball
A 6" (nominal pipe size) schedule 40 steel pipe has a chamfered entrance and 300 ft. long. what is the total loss of head
A rectangular plate has a length of (20.4 0.2) cm and a width of (8.7 0.1) cm. Calculate the area of the plate
A ball is thrown vertically upward, starting at y = 0, with a velocity of 20.0 m/s. Take "up" to be the positive direction for this problem. Calculate the maximum vertical displacement of the ball
A small omnidirectional stereo speaker produces waves in all directions that have an intensity of 8.50W/m2 at a distance of 4.00m from the speaker. At what rate does this speaker produce energy
In a study of proteins mediating cell membrane transport,microbiologists measure current versus time through the cellmembranes of oocytes (nearly mature egg cells) taken from theAfrican clawed frog,
Scientists are working on a new technique to kill cancer cells by zapping them with ultrahigh-energy (in the range of 1Ã-1012 Watts, What is the maximum value of the electric field in the pulse
A block is launched with speed up v0 a slope making an angle ? with the horizontal, Find an expression for the distance d the block travels along the slope
A compact disk spins with angular velocity 40.8rad/s. The player is turned off, and 2.10s later the CD has stopped. Find its average angular acceleration
1200 kg car at velocity 25m/s brakes and stop moving after 40m. What is the coefficient friction between the tires and road
Consider a gas of non-interacting spinless bosons in a 3d space with relativistic energy dispersion law E(p) = cp, find the fraction of atoms condensed into the lowest energy state
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