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A satellite is put in a circular orbit about Earth with a radius equal to 45% of the radius of the Moon's orbit. What is its period of revolution in lunar months? (A lunar month is the period of revolution of the Moon.)
A beam of laser light (? = 741 nm) hits a black wall and is fully absorbed. what is the total force exerted by the photons on the wall
An electron and a proton, starting from rest, are accelerated through an electric potential difference of the same magnitude. In the process, Find the ratio ve/vp
The nucleus of an atom consists of protons and neutrons (no electrons). A nucleus of a carbon-12 isotope contains six protons and six neutrons.
A roller-coaster car moves 198 ft horizontally and then rises 143 ft at an angle of 30° above the horizontal. It then travels 143 ft at an angle of 40° downward
A defibrillator consists of a 15.3-µF capacitor that is charged to 8.4 kV. (a) If the capacitor is discharged in 1.0 ms, how much charge passes through the body tissues? (b) What is the average power delivered to the tissues?
A 1940-kg car experiences a combined force of air resistance and friction that has the same magnitude whether the car goes up or down a hill at 32.2 m/s. At what angle is the hill inclined above the horizontal
Two speakers, one directly behind the other, are each generating a 275 Hz sound wave. What is the smallest separation distance between the speakers that would produce destructive interference at a listener standing in front of them? Assume that th..
Two 24 cm focal-length converging lenses are placed 16.50 cm apart. An object is placed 39.0 cm in front of one. Where would the final image formed by the second lens be located.
When they oppose one another, the box accelerates at 0.240 m/s2 in the direction of F2. (a) What is the magnitude of F1? (b) What is the magnitude of F2?
0.160kg of water at 88.0 degrees is poured into an insulated cup containing 0.234kg of ice initally at 0 degrees. Calculate the mass of liquid
A generator uses a coil that has 390 turns and a 0.65-T magnetic field. The frequency of this generator is 60.0 Hz, determine the length of the wire from which the coil is made
A visual inspection of an insect with mass 0.4mg (milligrams) suggest that its uncertainty in postion is 0.5um, How fast could the insect be moving
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