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Two runners compete in a race of 10.04 km. One runner has a steady speed of 11.14 km/h. The other has a steady speed of 13.85 km/h. What is the difference in time for the two runners?
A 38 g bullet is fired with a speed of 180 m/s into a 5 kg sandbag pendulum that is free to swing. To what maximum vertical height will the pendulum rise.
What is the radius of the pen. How far should it now sail to reach its original destination.
Find out the constant force that must be exerted on him to bring him to rest in a distance of 1.2 m in a time interval of 0.20 s.opposite the fullback's direction of motion.
define the magnitude of the tension in the chain.
A small plastic ball with a mass of 6.50 x 10?3 kg and a charge of +0.15uC is suspended from an insulating thread, What is the magnitude of the charge on each plate
A neutron star is the remnant left after certain supernovae (explosions of giant stars). Typically, neutron stars are about 20 in diameter and have around the same mass as our sun. What is a typical neutron star density in g/cm^3?
A rotating cylinder about 12.00 km in length and 8.00 km in diameter is designed to be used as a space colony. With what angular speed must it rotate so that the residents on it would experience the same acceleration because of gravity on Earth.
Estimate the power radiated by the human body. Be sure to state the estimated values of all relevant quantities. You need only outline your calculations. How does this value compare with the average caloric intake for humans?
A particle's acceleration is described by the function ax =(10-t)m/s^2, where t is in s. At what time is the velocity again zero
A parallel-plate capacitor has plates of area A and separation d and is charged to a potential difference, find The inital and final stored energy
Draw the displacement for the father and son.
The lines in a grating are uniformly spaced at 1520nm. Analyse the angular separation of the second order bright fringes between light of wavelength 603nm and 615.4 nm. Reply in units of mrad.
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