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A playground merry-go-round of radius R = 1.20 m has a moment of inertia I = 240 kg · m2 and is rotating at 11.0 rev/min about a frictionless vertical axle. Facing the axle, a 24.0-kg child hops onto the merry-go-round and manages to sit down on the edge. What is the new angular speed of the merry-go-round?
The Trans-Alaskan pipeline is 1300 km long, reaching from Prudhoe Bay to the port of Valdez, and is subject to temperatures ranging from -69°C to +36°C. How can one compensate for this expansion
A beam of parallel rays from a 24 MHz citizens band radio transmitter passes between two electrically conducting (hence opaque to radio waves) buildings located 45.00 m apart. What is an angular width of the beam as it emerges from between the buildi..
A rifle is aimed horizonatally at a target 50 m away. The bullet hits the target 2.0cm below the aim point. what was the bullets speed as it left the barrel
The first active volcano observed outside the Earth was discovered in 1979 on Io, one of the moons of Jupiter. Assume a volcano on another moon is observed to be ejecting material to a height of about 2.19 x10^5 m.
The skier's mass is 59.0 kg, and the coefficient of kinetic friction between the skis and the snow is 0.100. Find out the magnitude of the force that the tow bar exerts on the skier.
A 170g mass attached to a horizontal spring oscillates at a frequency of 3.70Hz, Determine Amplitude and Phase Constant
The magnetic field B at the center of a circular coil of wire carrying a current I (as in fig. 20-9) is where N is the number of loops in the coild, determine the magnetic field strength at the center of the coil
The equation of a transverse wave traveling along a very long string is given by y = 6.9 sin(0.025(pi)x + 4.5(pi)t), Determine the transverse displacement
A standing observer perceives a train whistle to have a frequency of 300 Hz. what is the frequency of the sound waves emitted from the train
You have a converging lens of focal length 20 -cm. For what range of object distances will the image be real
The femur is a bone in the leg whose minimum cross-sectional area is about 3.60 multiply.gif 10-4 m2. Find the maximum stress that this bone can withstand
An arteriole has a length of 1.25 mm and a radius of 21.9 ?m. The blood pressure drop along the arteriole is 1310 Pa. Calculate the resistance of the arteriole
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