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The displacement of a harmonic oscillator is given by y = 7.1 sin(25t), where the units of y are meters and t is measured in seconds. Evaluate what is its maximum velocity?
The space shuttle is in a 400km - high circular orbit. It needs to reach a 700 km -high circular orbit to catch the Hubble Space Telescope for repairs. how much energy is required to boost it to the new orbit
You need to produce a solenoid that has an inductance of 2.17 ?H. How long, in centimeters, should the tube be
A 78 g arrow is fired from a bowwhose string exerts an average force of 95 N on the arrow over adistance of 84 cm. What is the speed of the arrow as it leaves the bow
Derive an expression for the surface temperature of the Sun, in terms only of its solid angle, its flux per unit wavelength f(lambda1) at Earth at one wavelength (lambda 1) and its fundamental constants
The resonant frequency of an RCL circuit is 1.0 kHz, and the value of the inductance is 7.0 mH. What is the resonant frequency
two lens that are l29 cm apart are used to form an image. lens 1 is converging and has a focal length f112 cm lens 2 is
a hiker throws a stone from the upper edge of a vertical cliff. the stone's initial velocity is 25m/s directed at 40 degrees. with the face of the cliff. whats the height of the cliff?
sand drops from sationary hopper at the rate of 5kgs on to a conveyor belt moving with a constant speed of 2ms. what is
A 0.27-m-thick sheet of ice covers a lake. The air temperature at the ice surface is -10°C. In five minutes, the ice thickens by a small amount. Find the number of millimeters by which the ice thickens
The mass of the motorcycle and driver is 348 kg. Find out the magnitude of the normal force that acts on the cycle.
Two long parallel wires carry currents of 1.55 A and 5.51 A. Find the separation distance of the wires expressed in millimeters
A 5.95kg object is thrown 18.10m/s at a 30.00° angle andcollides head-on at its peak with a 14.5kg object fired at28.0° which is also at its peak. At what velocity was the14.5kg object fired
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