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A wheel with radius 43.9 cm rotates 4.27 times every second. Find the period of this motion.
What is the tangential speed of a wad of chewing gum stuck to the rim of the wheel?
At one instant a bicyclist is 75m due east of a park's flagpole, going due south with a speed of 13.0 m/s. Then, 10s later, the cyclist is 65 m due north of flagpole, going due east with a speed of 20.0 m/s.
What is the main possible displacement of the shopper
The distance between a loudspeaker and the left ear of a listener is 1.60 m. compute the time required for sound to travel this distance if the air temperature is 20° C.
Two cylindrical rods are identical, except that one has a thermal conductivity k1 and the other has a thermal conductivity k2. As the drawing shows.
How much longer does the trip take. Find out the acceleration of each mass and the tension in the string that connects them.
Estimate the value of resistances needed to make a variable timer for intermittent windshield wipers: one wipe every 15?s, 8?s, 4?s, 2?s, 1?s, Estimate the mininum value of the resistance
What is the net electric flux through the spherical surface
Charge q is fired through a small hole in the positive plate of a capacitor. If q is a positive charge, does it speed up or slow down inside the capacitor? reply this question using the concept of force.
When a second pipe is played at the same time, a 1.40 Hz beat note is heard. By how much is the second pipe too long.
Stone with a mass of 0.800 {rm kg} is attached to one end of a string 0.900 {rm m} long. The string will break if its tension exceeds 65.0 {rm N}. The stone is whirled in a horizontal circle on a frictionless tabletop; the other end of the string rem..
A battery with an emf of 12.0 V shows a terminal voltage of 11.8 V when operating a circuit with four light bulbs each rated at 4 W (at 12.0 V) which are connected in parallel. What is the current in each bulb
(a) How much does a 70.0 kg person weigh on the Earth? (b) How much would she weigh on the Moon (gmoon = 0.166g)? (c) How much would she weigh on a neutron star where gstar = 1.43×1011g?
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