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a boy is riding a bicycle which has tires with a diameter of 62cm. if he travels a distance o f 0.320km in a time of 1.00 minutes. what is the angular velocity of the tire? if the boy is able to accelerate his bicycle from rest to 16.0km/h in a time of 5.00s, what would the angular acceleration of the tire be?
As it enters a pipe, a perfect fluid has spped 3.70 m/s. As it exits the pipe, the speed is 10.6 m/s. what is the radius of the pipe at the exit
A 4.50 -kg ball is dropped from a height of 10.0 m above one end of a uniform bar that pivots at its center. How high will the other ball go after the collision
A 80 pF capacitor is charged to a potential difference of 140 V, and the charging battery is disconnected. what is the capacitance of this second capacitor
A high-voltage transmission line with a resistance of 0.28 omegacap.gif/km carries a current of 1040 A. What fraction of the transmitted power does this loss represent
Consider the transitions 3d -->2p in hydrogen. Calculate the possible energies of emitted photons, How many photon lines are there
A 300-kg load is hung on a wire of length 5.00 m, cross-sectional area 0.200 × 10-4 m2, and Young's modulus 8.00 × 1010 N/m2. What is increase in length of the wire
you are on the moon and would like to send a probe into space so that it does not fall back to the surface of the moon. what launch speed do you need
Consider pendulum formed from a meter stick pinned at the end. The center of mass (COM) is at the middle of the ruler, and the COM rotational inertial is (see Table 10.2 in text) for meter( Text is principles of physics by Serway & Jewett). When t..
If a car takes a banked curve at less than a given speed, friction is needed to keep it from sliding toward the inside of the curve (a real problem on icy mountain roads).
A sign has a mass of 1050 kg, a height h = 1 m, and a width W = 4 m. It is held by a light rod of length 5 m that is perpendicular to a rough wall. What is the smallest value of the coefficient of friction
A heat engine has a useful work output of 4.0 kJ and expels 8.0 kJ of exhaust energy in each cycle. what is the engine's thermal efficiency
The wavelength of red helium-neon laser light is 632.8 nm. What is the wavelength of the laser light in the class that has an index of refraction of 1.5 in units of nm, What is the speed of the laser light in the glass in units of 10^8 m/s
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