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A spacecraft is in a circular orbit regarding the moon, 1.76x105 m above its surface. The speed of the spacecraft is1800 m/s, and the radius of the moon is 1.74x106 m. If the moon were a smooth, reflective surface, (a) how far below the moon's surface would the image of the spacecraft appear, and (b) what would be the apparent speed of the spacecraft's image? (Hint: both the spacecraft and its image have the similar angular speed regarding the center of the moon.)
During the power stroke in a four stroke automobile engine,the piston is forced down as the mixture of combustion products and air undergoes an adiabatic expansion. Find the average power generated during the expansion
A certain type of molecule has an excited energy states, plus the minimum energy ground state. what is the energy of the ground state
A 75-kg piece of metal has specific heat 430 J/kg°C and is initially at 950°C. To cool it down, it is dunked into 710 kg of oil that has a temperature of 32°C and specific heat of 2700 J/kg°C. Assuming that heat flows only between the oil and the m..
A block of wood (density=.50 grams/cm^3) is floating in oil (density=0.75 grams/cm^3). the mass of the wood is 1500 grams. Determine the volume of the oil displaced
A skier of mass 100 kg starts from rest and comes down a slope of constant angle 25 degrees with the horizon. What is the length of the slope
What minimum coefficient of kinetic friction is required to bring the crate to a stop over a distance of 5.0 m along the lower surface.
Two boats start together and race across a 56-km-wide lake and back. Boat A goes across at 52 km/h and returns at 56 km/h. Boat B goes across at 36 km/h, and its crew, realizing how far behind it is getting, returns at 79 km/h. Turnaround times are n..
A 5.0-kg object with a speed of 4.0 m/s collides head on with a 10-kg object moving toward it with a speed of 3.0 m/s. what is the post-collision speed of the 5.0-kg object
A helium-neon laser intended for instructional use operates 7.5 mW. Find out the maximum value of the electric field at a point where the cross sectional area of beam is 10 mm.
Consider a sunspot with measured field strength 1000 Gauss. Assume the ratio of the total brightness of the gas at the center of the sunspot, Determine the temperature of the gas inside and outside the sunspot
A weather balloon is designed to expand to a maximum radius of17m at its working altitude, what is its radius at liftoff
A spherical capacitor contains a charge of 3.40nC when connected to a potential difference of 250V. Calculate the radius of the inner sphere
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