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When illuminated with light of 600nm (6*10^-7 m), the first dark fringe produced by a single slit lies a distance of 1.4 cm from the center of the screen placed 3.0 m from the slit. How wide is the slit?
A catcher catches a fastball going 95mi/hr and recoils 12cm while stopping the ball in 0.005s. (mass of the ball is 280g). find the average force the ball exerts on the hand & glove
A 0.75?F capacitor is charged to 90V . It is then connected in series with a 35? resistor and a 150? resistor, How much energy is dissipated by the 35? resistor
A wave crest passes an observation point followed by a second crest. The time between crest is a period of 168.818 seconds. If the wave is traveling at a speed of 154.167 m/s, how long are the wavelengths?
A small object begins a free-fall from a height of H = 82.5 m at t0 = 0 s. After ? = 2.85 s, a second small object is launched vertically up from the ground with the initial velocity v0 = 40.2 m/s. At what height from the ground will the two objec..
At what net rate does heat radiate from a 275m^2 black roof on a night when the roof temp is 30.0C and the surrounding temp is 15C. The emissivity of the roof is 0.900
A 120 g trick baseball is thrown at 51 km/h. It explodes in flight into two pieces, with a 50 g piece regular straight ahead at 86 km/h. How much energy do the pieces gain in the explosion.
A typical American house requires an average 20 kW for heating. Explain how many homes could be heated with the waste heat of this one power plant?
the next two questions refire to the following scenario. Determine the horizontal velocity of the arrow
Consider the crates in the figure where m1 = 45 kg and m2 = 12 kg. Assume that there is no friction between m1 and the table, Write Newton's second law for motion along both coordinate directions
You drop a 14g ball from a height of 1.5 m and it only bounces back a height of 0.85m. What is the total impulse on the ball when it hit the floor
Assume the wheel has a constant negative angular acceleration of magnitude 2.50 rad/s2. Explain through how many radians has the wheel turned during the interval found in (a) which is 4.98?
A thin, uniform, metal bar, 3m long and weighing80N , is hanging vertically from the ceiling by a frictionless pivot, Find the angular speed of the bar just after the collision
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