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Derive a formula for the horizontal range R, of aprojectile when it lands at a height h above its initialpoint. (For h < 0, it lands a distance -h below thestarting point.) Assume it is projected at an angleθ0 with initial speed v0.
Two comets, each of mass 6500 kg and traveling 87 m/s in opposite directions, collide head-on and come to rest. How much energy is produced in this collision
Consider two identical +53 microcoulomb point charges placed 58 cm apart. Calculate the work (in J) required to move the test charge to a point 8 cm closer to either of the charges
A rifle has a mass of 5.38 kg and it fires a bullet of mass 12.0 g at a muzzle speed of 827 m/s. What is the recoil speed of the rifle as the bullet leaves the gun barrel
Ultrasound with a frequency of 4.288 MHz can be used to produce images of the human body. what is the wavelength in the body
An electron with speed v0 = 2.26×107m/s is traveling parallel to an electric field of magnitude E = 2.36×104N/C. How far will the electron travel before it stops
A crankshaft with a diameter of 3.0 cm, rotating at 2900rpm comes to a halt in 1.20s. How many revolutions does the crankshaft make as it stops
A 1.78 m long air column is open at both ends. The frequency of a certain harmonic is 828 Hz, and the frequency of the next-higher harmonic is 920 Hz. find out the speed of sound in the air column.
A diver pushes off horizontally from the top of a vertical cliff that is 40.0 m high from water surface below. How long is the diver in the air
A person pushes on a stationary 125 N} box with 69N at 30degrees below the horizontal, as shown in the figure. The coefficient of static friction between the box and the horizontal floor is 1.20. What is the normal force on the box?
A car wheel in diameter of 30 inches has a linear velocity of 30 mph. The car accelerates for 10 seconds. What is the angular displacement of the car wheel during the 10 seconds of acceleration
A computer to be used in a satellite must be able to withstand accelerations of up to 25 times the acceleration due to gravity. What is the minimum amplitude of vibration that must be used in this test
Particles pass through a single slit of width 2.3 mm, use the Heisenberg uncertainty principle to determine the minimum range of angles
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