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Calculate (a) at what speed Earth would have to rotate in order that objects at the equator would have no weight. Assume the radius of Earth to be 6400 km.
(b) What would be the linear speed of a point on the equator in this condition?
(c) What would be the length of a day (one complete revolution) under these conditions?
Boral is a commercial shielding material consisting of approximately equal parts by weight of boron carbide (B4C) and aluminum compressed to about 95% theoretical density (2.608 g/cm3) and clad with thin sheets of aluminum 0.25 cm thick. The manuf..
question1the follow statement is true or false?the electric field epoint at the center of an induced dipole because of
A 4.80 kg object is released from rest while fully submerged in a liquid. The liquid displaced by the submerged object has a mass of 3.25 kg. How far and in what direction does the object move in 0.250 s, assuming that it moves freely and that the dr..
A heat pump has a coefficient of performance of 3.75 and operates with a power consumption of 7.13 103 W. How much energy does it deliver into a home during 24 h of continuous operation? How much energy does it extract from the outside air?
At an outdoor market, a bunch of bananas attached to the bottom of a vertical spring of force constant 16.0 N/m is set into oscillatory motion with an amplitude of 20.0 cm. What is the weight of the bananas in newtons
Which of these systems are made of identical particles? Explain
What is the derivative of the transverse unit VECTOR, e(theta in subscript), with respect to time? i.e., de(theta)/dt? Derive the answer using the radial and transverse (polar) coordinate system.
A thin spherical shell has a radius R=3 m. A constant force F=2 N is applied to the shell, always tangential to the surface of the sphere, What is the mass of the shell
A spherical balloon of volume 4.08 103 cm3 contains helium at a pressure of 1.21 105 Pa. How many moles of helium are in the balloon
An organ pipe is open at one end and closed at the other. The pipe is designed to produce the note middle C, What is the frequency of the second harmonic
A bicycle tire whose volume is 4.1 x 10-4 m3 has a temperature of 283 K and an absolute pressure of 3.31 x 105 Pa. How many moles of air must be pumped into the tire
Suppose that a point P in space-time with coordinates x = (x, x4) lies inside the backward light cone as measured in a frame S. This mean that x . x
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