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A airplane is flying at a velocity of 240m/s and a angle of 30degrees. when the altitude of the plane is 2.4 km, a flare is released from the plane. the flare hits the target on the ground. what is the angle θ
A 60 (g} tennis ball with an initial speed of 32 {m/s} hits a wall and rebounds with the same speed. The figure shows the force of the wall on the ball throughout the collision.
Find an expression for the volume charge density ?(r) inside the ball as a function of r. Express your answer in terms of the variables Q, r, R, and appropriate constants
in a hydraulic lift, if the radius of the smaller piston is 2.0 cm and the radius of the larger piston is 20.0 cm, how far does the smaller piston move
q1. a 1500 w hair dryer is operated on a 160 v circuit for 5 minutes every day. if electricity costs 0.15kwha what is
A solenoid of length 6.3 cm and diameter 0.88 cm is wound with 178 turns per cm. The current is decreasing at a rate of 38.0 A/s. What is the induced emf in one of the windings
If its length is 49.8 m when measured from inside the spacecraft, what is its length measured by a ground observer
Two narrow paralle slits illuminated by tellow light with a wavelength of \lambda = 600 nm produce fringes with a separation of 0.50 mm on a screen 2m away,
At a rock concert, the engineer decides that the music isn't loud enough. He turns up the amplifiers so that the amplitude of the sound, By what percentage does the intensity increase
A disc-shaped grindstone of mass 3.0 kg and radius 8.0 cm is spinning at 600 rev/min. What was the stone's initial kinetic energy
The equation of a transverse wave traveling along a very long string is y = 6.5 sin (0.045 ?x + 6.0 ?t), Determine the amplitude of propagation of the wave
An air bubble is expelled by an underwater diver at a depth of 24.6 m. Find the final volume of the bubble if its initial volume is 11.4 cm3
oxygen gas initially at 300 k and 100 kpa is contained in a rigid tank. two alternative processes are to be considered
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