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A golf ball strikes a hard, smooth floor atan angle of θ = 26.4° and, as the drawing shows, rebounds at the sameangle. The mass of the ball is 0.037kg, and its speed is 45 m/s just before and after striking thefloor. What is the magnitude of the impulse applied to the golfball by the floor? (Hint: Note that only the vertical component of the ball's momentum changes during impact with the floor.)_______________N·s
The function y(x, t) = (25.0 cm) cos(?x - 26?t), with x in meters and t in seconds, describes a wave on a taut string. What is the transverse speed for a point on the string at an instant
you slide a crate up a ramp at an angel of 30 degress by exerting a 225 n force parallel to the ramp. the crate moves
The "hang time" of a punt is measured to be 4.50 s. If the ball was kicked at an angle of 63 degrees above the horizontal and was caught at the same level from which it was kicked, what was its initial speed?
In a model AC generator, a 503 turn rectangular coil 5.0 cm by 21 cm rotates at 120 rev/min in a uniform magnetic field of 0.59 T. What is the maximum emf induced in the coil
An FM radio station broadcasts at a frequency of 92.4 MHz. Thepower radiated from the antenna is 68 kW. In one second, how many photons does the antenna emit
Two conductors insulated from each other are charged by transferring electrons from one conductor to the other. After 2.4255 × 1014 have been transferred, the potential difference between the conductors is 20.9 V. The charge on an electron is−1.60..
The tungsten filament of a light bulb has an operating temperature of about 2 100 K. what is the power output of the light bulb
A 5 kg block is placed near the top of a frictionless ramp, which makes an angle of 30o degrees to the horizontal. Find the maximum compression of the spring
A 127-turn circular coil of radius 2.09 cm is immersed in a uniform magnetic field that is perpendicular to the plane of the coil. Find the magnitude of the average EMF
A solenoid1.20m long and2.80cm in diameter carries a current of21.0A. The magnetic field inside the solenoid is 21.0mT. Find the length of the wire forming the solenoid.
A Mercedes-Benz 300SL (m = 1700 kg) is parked on a road that rises 20° above the horizontal. What is the magnitude of the normal force
question1a small immersion heater can be used to heat a cup of water for coffee or tea. if the heater can heat 180ml
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