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A bicyclist is finishing his repair of a flat tire when a friend rides by with a constant speed of 3.23 m/s. Three seconds later, the bicyclist hops on his bike and accelerates at 2.34 m/s2 until he catches his friend.
How much time does it take until he catches his friend?
How far has he traveled in this time?
What is his speed when he catches up?
Find the speed of a satellite moving in a circular orbit just above the surface of The Earth. The Earth has a radius of 6.38 106 m and a mass of 5.97 1024 kg
A 33.2 m steel wire and a 25.6 m copper wire both with 1.00 mm diameters, are connected end to end and are stretched to a tension of 120 N. How long does it take the transverse wave to travel the entire length of the two wires.
If the uncertainty in the energy of an excited state is a billionth of an electron volt (1 neV), what is the half-life of the state
X rays diffract from a crystal in which the spacing between atomic planes is .200nm. what is the angle of the first-order diffraction
For a single slit diffraction, first dark fringe appears at an angle 15 degrees from the central maxium. At which angle will the 3rd dark fringe be formed
A square conducting loop has side a and carries clockwise current I as shown in the diagram. calculate the magnitude and direction of the magnetic field at the center of the square
Jack and Jill are standing on a crate at rest on the frictionless, horizontal surface of a frozen pond. Jack has a mass of 74.6kg , Jill has a mass of 44.0kg, What is the final speed of the crate if Jill jumps first and then Jack, again in the same..
A golf ball is struck off a tee (negligible height and air resistance) with initial velocity of 50 meters per second at an angle of 30 degrees above the horizontal. Illustrate what will be the vertical component of velocity after 2.5 seconds?
A spherical shell of inner radius a and outer radius b is constructed of uniformly magnetized material with magnetization M. (a) Find the equivalent volume and surface current distributions.
The star Alpha goes supernova. Ten years later and 80 ly away, as measured by astronomers in the galaxy, star Beta explodes. what is the time between the explosions
A 320 piano slides 3.3 down a 24 incline and is kept from accelerating by the man who is pushing back on it parallel to the incline. Determine the work done by the man on the piano.
How many turns of wire would be required to make a 130-mH inductor out of a 29.0-cm-long air-filled solenoid with a diameter of 5.1cm ?
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