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What is the law of reflection?
What is the law of refraction? What other name is sometimes given to it?
What is meant by the critical angle for total internal reflection?
a rifle with a mass of 2.8 kg fired a bullet with a mass of 0.003 kg. the bullet moves with a muzzle velocity of 420 m/s after the rifle is fired
If hot air is used instead of helium, what is the required volume of the balloon if the air inside can be maintained at 37.0 oC
A 76 kg window cleaner uses a 13 kg ladder that is 5.0 m long. He places one end on the ground 3.0 m from a wall, What is the angle of this force on the ladder
A sphere of aluminum 11.3 cm in diameter is suspended in oil (density = 1 grams/cm3). Find the tension in the supporting string in Newtons
If a harmonic object has a displacement that is described by: X = (.25m) sin (10 t), calculate the maximum velocity of this object
q1. the international space station orbits the earth at the average altitude of 362 km. assume that its orbit is
Two blocks are connected by a string. The smooth inclined surface makes the angle of 35 degrees with the horizontal, and the block on the incline has a mass of 5.7 kg.
A double speed trap is set up on a freeway. One police cruiser is hidden behind a billboard, and another is some distance away under a bridge. As a sedan passes by the first cruiser, its speed is measured to be 99.7 mph.
In a local bar, a customer slides an empty beer mug on the counter for a refill. The bartender is momentarily distracted and does not see the mug, with what velocity did the mug leave the counter
A meterstick (L = 1 m) has a mass of m = 0.217 kg. Initially it hangs from two short strings: one at the 25 cm mark and one at the 75 cm mark. Where is the angular acceleration of the meterstick a maximum
A golf club strikes a 0.034-kg golf ball in order to launch it from the tee. With what speed does the ball leave the club
Your personal stereo is in a dead spot caused by direct reception from an FM radio station at 91.9MHz interfering with the signal reflecting off a wall behind you.How much farther from the wall should you move so that the interference is fully constr..
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