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A 5000kg lunar lander is in orbit 30km above the surface of the moon. It needs to move out to a 500km-high orbit in order to link up with the mother ship that will take the astronauts home. How much work do the thrusters do?
Monochromatic light is incident on a metal surface. The ejected electrons give rise to a current in a circuit. how will the required stopping potential change
Superheated water vapor initially at 15 bar and 440°C is cooled at constant pressure to a saturated vapor state and is then cooled at constant volume to a final temperature of 120°C, Determine the quality of the water at the final state
Suppose 0.0330 kg of steam (at 100.00°C) is added to 0.330 kg of water (initially at 21.1°C.). Find the final temperature (in °C) of the water after equilibrium is reached
A 0.2kg toy car rolls down ramp. If the car started from rest at a height of 0.30m, At what speed do the two cars move after the collision
A balloon carrying a basket is descending at a constant velocity of 20.0m/s. At the instant the rock hits the ground, how far is it from the basket
Five-gram samples of copper and aluminum are at room temperature
11 an experimenter uses an x-ray spectrometer nbspwhich has a rotating drum scale a pointer to measure angles. a view
A woman holds a tube of lipstick 2.3 cm from a spherical mirror and notices that the image of the tube is upright and one fifth its normal size, Determine the position of the image. Is it in front of or behind the mirror
If an object is projected upward with a velocity of 7.3 m/s at an angle of 25 degrees, how far in the horizontal direction did it travel
A Ferris wheel is moving at an initial angular velocity of 1.0 rev/39 s. If the operator then brings it to a stop in 3.3 min, what is the angular acceleration of the Ferris wheel
An ideal gas at 11.7 °C and a pressure of 2.42 x 105 Pa occupies a volume of 3.84 m3. How many moles of gas are present
A stretched spring stores 2.2 of energy. How much energy will be stored if the spring is stretched three times as far
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