An astronaut lands on an earth-like planets and drops a small lead with a mass of 76.5 g from the top of the spaceship. the point of release is 18 m above the surface of the planet and the ball takes 2.5 s to reach the ground. the astronaut's mass on earth is 68.5 kg. what is her weight on the planet?
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Physics, 21.06.2019 15:30
Which describe reflection? check all that apply. light bounces off a boundary.
Answers: 1
Physics, 22.06.2019 13:40
An ideal otto cycle has a compression ratio of 10.5, takes in air at 90 kpa and 40°c, and is repeated 2500 times per minute. using constant specific heats at room temperature, determine the thermal efficiency of this cycle and the rate of heat input if the cycle is to produce 90 kw of power.
Answers: 2
Physics, 22.06.2019 17:30
Aball thrown by ginger is moving upward through the air. diagram a shows a box with a downward arrow. diagram b shows a box with an upward arrow. diagram c shows a box with a downward and upward arrow equal in size. diagram d shows a box with a downward and upward arrow with the downward arrow larger in size. which force diagram represents the forces on the ball? you may neglect the effects of air resistance.
Answers: 3
Physics, 23.06.2019 02:00
Ice at 0.0∘c has a density of 917 kg/m3. a 3.00 cm3 ice cube is gently released inside a small container filled with oil and is observed to be neutrally buoyant. what is the density of the oil?
Answers: 2
An astronaut lands on an earth-like planets and drops a small lead with a mass of 76.5 g from the to...
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