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A projectile is fired at 34.9° above the horizontal. Any effects due to air resistance are negligible. At the highest point in its trajectory, its speed is 26.1 m/s. Calculate the horizontal component of the initial velocity.
In a common but dangerous prank, a chair is pulled away as a person is moving downward to sit on it, causing the victim to land hard on the floor.
The tip of a tuning fork goes through 480 complete vibrations in a time of 0.570s. Find the angular frequency. Find the period of the motion.
When a 9.0 V battery is connected to a capacitor, it puts 8.40e-4 C of charge on the capacitor. What is the unknown battery's voltage
Communication satellites are placed in geosynchronous orbit, i.e., in circular orbit such that they complete one full revolution about the earth in one sidereal day.
Find the speed of a satellite moving around the earth in a circular orbit that has a radius equal to six times the earth's radius of 6.38 106 m
A large cylindrical water tank of diameter od D=3.00 m. What is the flow speed of the water when it comes out from the hole
An RLC circuit is used in a radio to tune into an FM station broadcasting at f = 99.7 MHz. The resistance in the circuit is R = 12.4 ?, What capacitance should be used
The winner of the competition wants to know if he has broken the world record for the break shot of 32mph (about 14.3m/s). The ball landed a distance 5.15m away from the table edge, calculate his break shot speed. At what speed did his pool shot h..
A short blast of sound with frequency 335 Hz is created by a speaker that projects the sound equally in all directions. what was the power of the blast
what happens to light of a particular frequency when it is incident upon the material that natural frequency is the same as the frequency of the light.
A skin diver is 1.8 m below the surface of a lake. A bird flies overhead 7.6 m above the surface of the lake. how far above the diver does it appear to be
A solid block is suspended from a spring scale. When the block is in air, the scale reads 37.1 N, when immersed in water the scale reads 32.2N, What is the density of the oil
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