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A projectile is fired up into the air at a speed of 185 m/s at an angle of 42° relative to the horizontal. Determine the maximum height the projectile will reach.
At rest, the car's horn sounds at a frequency of 455 Hz. The horn is sounded while the car is moving down the street. A bicyclist moving in the same direction with one-third the car's speed hears a frequency of 427 Hz. What is speed of the car.
The tropical year, the time from vernal equinox to the next vernal equinox, is the basis for our calendar. Find the number of seconds in one and a half tropical years
Two students with vibrating 440Hz tuning forks walk away from each other with equal speeds. How fast must they walk so that they each hear the frequency of 433 from the other fork.
1. starting from rest a proton falls through a potential difference of 2700 v. what speed does it acquire?2. a long
A uniform 1.5T magnetic field passes perpendicular through the plane of a wire loop 0.3m in area. What flux passes through the loop
Light of wavelength 650 nm is incident normally upon a glass plate. What is the highest order bright fringe
A 0.51 kg mass at the end of a spring vibrates 9.0 times per second with an amplitude of 0.18 m. Determine the total energy of the system
A father and a daughter balance a teeter-totter to illustrate the principle of the lever. If the father whose weight is 150 N is 8 m from one end, how far away on the opposite side of the fulcrum should the 50-N daughter stand to balance the teeter-t..
A 180g block hangs from a spring with spring constant 13N/m . At t=0s the block is 13cm below the equilibrium point, What is the block's oscillation frequency
Explain how many atoms strike the umbrella each second? Assume that the wind blows horizontally so that the gravity can be neglected.
A hunter aims directly at a target (on the same level) 160 m away, If the bullet leaves the gun at a speed of 260 m/s, by how much will it miss the target
A laser beam enters a 15.5 cm thick glass window at an angle of 37.0° from the normal. How long does it take the beam to pass through the plate
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