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A star is moving away from Earth at a speed of 2.4 X 10^8 m/s. Light of wavelength 480 nm is emitted by the star. What is the wavelength as measure by an Earth observer?
A 352-kg motorcycle is accelerating up along a ramp that is inclined 30.0º above the horizontal. Find the magnitude of the motorcycle's acceleration
If a vehicle is traveling at velocity v and takes a distance d to stop, then how fast is a vehicle traveling if it takes a distance of 3d to stop. suppose mass and acceleration are equal.
A girl on a sled coasts down a hill. Her speed is 7.60 m/s when she reaches level ground at the bottom. The coefficient of kinetic friction between sled's runners and the hard, icy snow is 0.04, and the girl and sled together weigh 644N.
Identify how the carbon sequestration strategy seeks to fix, or at a minimum, define what is meant by the term carbon sequestration
A toroid having a 7.2 cm square cross section and inside radius of 22.8 cm has 170 turns of wire and carries a current of 1.8 A. What is the magnetic flux through the cross section
The max wavelength of light, which emits electrons is 460 nm. Calculate work function of sodium
the earth completes a circular orbit around the sun in one year. what is the speed of the earth around the sun
If she is served 200 of coffee at 84 in a well-insulated container, how much ice at 0 should she add to obtain a final temperature of 31.
An insulated Thermos contains 119 cm3 of hot coffee at 64 °C. You put a 12g ice cube at its melting point to cool the coffee. By how a lot of degrees have your coffee cooled once the ice has melted and equilibrium is reached.
A 1020kg artillery shell is fired from a battleship. While it is in the barrel of the gun, it experiences an acceleration of 2.1x10^4m/s^2. what net force is exterted on the artillery shell before it leaves the barrel of the gun
If lithium ion Li+2 is treated as a classical system of one electron of charge ?e going around a nucleus of charge 3e on a circle of radius 1.77× 10?11 m
The period of the moon (the time for a complete revolution) is 27.32 days, Determine the angular velocity of the moon
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