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a 52g ice cube can slide without friction up and down a 26 degree slope the ice cube is pressed against a spring at the
a bird is flying directly toward a stationary bird-watcher and emits a frequency of 1380 hz the bird-watcher however
a horizontal circular platform rotates counterclockwise about its axis at the rate of 0891 rads you with a mass of 651
the greek mathematician archimedes is credited with discovering how to verify the amount of pure gold in an irregularly
a 863-kg horizontal circular platform rotates freely with no friction about its center at an initial angular velocity
the elastic energy stored in your tendons can contribute up to 35 of your energy needs when running sports scientists
the gasoline tank of an automobile contains 83 kg of gasoline the gasoline combines with 3320 kg of oxygen what is the
when a certain liquid freezes it expands about 115 what would be the pressure increase inside an engine block if the
the nucleus of an atom consists of protons and neutrons no electrons a nucleus of a carbon-12 isotope contains six
a cyclotron designed to accelerate protons has a magnetic field of magnitude 0470 t over a region of radius 140 mwhat
sea-level atmospheric pressure is approximately 147 pounds per square inch from this fact we can deduce that a column
two lightbulbs have cylindrical filaments much greater in length than in diameter the evacuated bulbs are identical
in this section assume the sound speed in air is 343 ms a goose flying toward you at 113 ms emits a squawk which you
compute the number of electrons in a flake of pure gold valued at 059 assume that the price of gold is 11020troy oz 1
a 12 kg runaway grocery cart runs into a spring with spring constant 240 nm and compresses it by 60 cm what was the
a laser beam is traveling through an unknown substance when it encounters a boundary with air the angle of reflection
a sample of 15 g of nitrogen can be combined with 17142857 g of oxygen to form nitric oxide gas no what mass of oxygen
the radar system transmits 1875 ghz from a circular antenna with a diameter 23m at a range of 62km what is the smallest
aluminum has many different isotopes what percentage of the mass of 26al is attributable to its
high-frequency sound waves exhibit less diffraction than low-frequency sound waves do however even high frequency sound
a tank of gasoline n 140 is open to the air n 100 a thin film of liquid floats on the gasoline and has a refractive
an unknown element has two naturally occurring isotopes isotope 1 has a mass of 1200 amu and an abundance of 40 isotope
you are standing in air and are looking at a flat piece of glass n 152 on which there is a layer of transparent
lithium has two stable isotopes 6li and 7li if a sample is composed of 29 of the lighter isotope with the balance being