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A marble slides without friction in a vertical plane around theinside of a smooth, 21 {\rm cm}-diameter horizontal pipe. The marble's speed at the bottom is 4.5 {\rm {m}/{s}} this is fast enough sothat the marble makes a complete loop, never losing contact withthe pipe.What is its speed at the top?
Two loudspeakers are placed at either end of a gymnasium, both pointing towards each other. The sound emitted by the speakers is in phase and are of frequency of 256 Hz.
A converging lens of focal length 0.25 m forms a virtual image of an object, What is the distance between the object and the lens
At the very bottom of the circle, a too sharp knife is suddenly inserted to cut the string directly below the point of support. How far to the right of where the string was cut does the ball hit the floor.
Three successive resonant frequencies in an organ pipe are 865, 1211, and 1557 Hz. What is the fundamental frequency
A 100-W driveway light bulb is on 10 hours per day. Assuming thepower company charges 10 cents for each kilowatt-hour of electricity used, estimate the annual cost to operate the bulb.
A 115-? resistor, a 51.7-mH inductor, and a 154-?F capacitor are connected in series to an ac generator. At what frequency will the current in the circuit be a maximum
A satellite has a mass of 95 kg and is located at 1.99 106 m above the surface of Earth. What is the magnitude of the gravitational force on the satellite
The hammer throw is a track-and-field event in which a 7.30-kg ball (the hammer) is whirled around in a circle several times and released. It then moves upward on the familiar curved path of projectile motion and eventually returns to the ground s..
A loop of area 0.02 m^2 is perpendicular to a magnetic field which changes from 2 T to 1.5 T in a time of 0.4 sec. What is the average voltage induced in the loop
Find the radical acceleration at the edge of a phonograph record of radius 0.15 m rotating at 78 rev min^-1. B.) The record comes to a stop with a uniform angular acceleration in 2 s. Find the tangential acceleration at the edge and the angular accel..
A mass attached to a spring oscillates with an amplitude of 18.0 cm; the spring constant is k= 17.0N/m. Find the value of the mass
In a two-slit experiment, the slit separation is 3.00 Ã- 10-5 m. The interference pattern is recorded on a flat screen-like detector that is 2.00 m away from the slits.
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