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A horizontal rifle is fired at a bull's -eye. the muzzle speed of the bullet is 670m/s the gun is pointed directly at the center of the bull's -eye but the bullet strikes the target 0.025m below the center what is the horizontal distance between the end of the rifle and the bull's-eye?
The primary coil of a transformer has 237 turns; secondary coil has 2100 turns. An alternating current is sent through the primary coil. The emf in the primary is 25 V. What is the emf amplitude in secondary.
A 5.0 ice cube at -20 is in a rigid, sealed container from which all the air has been evacuated. How much heat is required to change this ice cube into steam
A diver springs upward with an initial speed of 7 m/s from a diving board that is 2 m above the water. Find the total time the diver is airborne
question1a 35 kg uniform ladder is leaned against a building. the 5 meter tall ladder makes an angle of 60 degrees with
you are traveling in a car going at a constant speed of 100 kmhr down a long straight highway. you pass another car
A tennis ball of mass m = 60.0 g and speed v = 25.0 m/s strikes a wall at a 45º angle and rebounds with the same speed at 45º
A small immersion heater is rated at 329 W. Compute approximately how long it would take to heat a cup of soup (suppose this is 250 mL of water) from 20°C to 50°C.
Someone is pulling a suitcase through an airport at constant speed. The handle of the suitcase makes an angle of 55 degree with the horizontal. what is the pulling force being exerted by the person parallel to the handle
An electron is accelerated through 1.65 X 10^3 V from rest and then enters a uniform 1.30-T magnetic field. What is the minimum magnitude of the magnetic force this particle can experience
An ideal gas is compressed from a volume of 400 cm^3 to a volume of 150 cm^3 slowly and isothermally in a piston-cylinder system. If the final pressure is 100 kPa, determine a) the work done on the gas and b) the heat transfer (specify whether the..
At time t = 0, the hockey puck is sent sliding over a frozen lake, directly into a strong wind. Gives the velocity v of the puck versus time as puck moves along a single axis. (The time axis is marked in increments of 0.25 s.) At t = 2.8 s, what i..
A 23.2-mW laser beam of diameter 2.18 mm is reflected at normal incidence by a perfectly reflecting mirror. Calculate the radiation pressure on the mirror
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