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A plane, diving with constant speed at an angle of 49.0° with the vertical, releases a projectile at an altitude of 560 m. The projectile hits the ground 6.00 s after release. (Assume a coordinate system in which the airplane is moving in the positive horizontal direction, and in the negative vertical direction. Neglect air resistance.)a) What is the speed of the aircraft?b) How far did the projectile travel horizontally during its flight?c) What were the horizontal and vertical components of its velocity just before striking the ground?____m/s (horizontal)____m/s (vertical)
a golf ball of mass 0.050 kg is at rest on the tee and has a velocity of 102 ms immediately after being struckif the
A metal ball with a mass of 3.71·10-6 kg and a charge of +5.77 mC has a kinetic energy of 4.99·108 J. It is traveling directly at an infinite plane of charge with a charge distribution of +3.21 C/m2. If it is currently 1.87 m away from the plane of c..
A cubical block of wood 0.110 m on a sideand with a density of 560 kg/m3 floats in a jar of water. Oil with a density of 750kg/m3 is poured on the water until the top of the oillayer is 0.034 m below the top of the block
A student doing an experiment pours 0.160kg of heated copper shot into a 0.355-kg aluminum calorimeter cup containing 0.240kg of water. find the initial temperature of the shot
A standard 1 kilogram weight is a cylinder 44.0 mm in height and 40.0 mm in diameter. What is the density of the material
Two meteoroids are 2.6×105 km from Earthand moving at 2.5 km/s. One is headed straight for Earth,while the other is on a path that will come within 8500 km of Earth's center. What is the speed of the first meteoroid when itstrikes Earth?
An electron with a speed of 7.98 × 108 cm/s in the positive direction of an x axis enters an electric field of magnitude 2.25 × 103 N/C, how much time will have elapsed
is any work done when moving a charge along a field line?a. yes the field does positive work when a positive charge
Moon effect. Some people believe that the Moon controls their activities. If the Moon moves from being directly on the opposite side of Earth from you to being directly overhead, by what percentage does (a) the Moon's gravitational pull on you inc..
you arrive for a party on a night when its 8 degrees celcius outside. your hosts meet you at the door and say the party
Fred and Barney are two electric charges that are to begin with held 1 meter apart and experience an electric repulsion of 10 pounds of force. What would be the force of repulsion between them be if the two were moved closer together so that they ..
A 57 gram tennis ball is served at 45 meters per second. If the ball started from rest what impulse was applied to the ball by the racket
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