1. calculate the weight of a watermelon with a mass of 2 kg on the earth (g = 9.80 m/s2) and on the moon (g = 1.63 m/s2). use this example to describe the differences between mass and weight and how mass and weight are related.
2. apply newton’s second law to calculate the frictional force needed to hold a 0.02 kg pen in your fingers and keep it from falling. (g = 9.8 m/s2)
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Physics, 22.06.2019 13:50
Two students, each riding bicycles, start from the same apartment building and ride to the same building on campus, but each takes a different route. the first student rides 1100 m due east and then turns due north and travels another 1430 m before arriving at the destination. the second student heads due north for 1930 m and then turns and heads directly toward the destination.at the turning point, how far is the second student from the destination?
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Physics, 22.06.2019 17:20
Scientific models are based on current knowledge, which can limit their effectiveness when new discoveries are made.
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Physics, 22.06.2019 19:40
It may seem strange that the selected velocity does not depend on either the mass or the charge of the particle. (for example, would the velocity of a neutral particle be selected by passage through this device? ) the explanation of this is that the mass and the charge control the resolution of the device--particles with the wrong velocity will be accelerated away from the straight line and will not pass through the exit slit. if the acceleration depends strongly on the velocity, then particles with just slightly wrong velocities will feel a substantial transverse acceleration and will not exit the selector. because the acc
Answers: 1
1. calculate the weight of a watermelon with a mass of 2 kg on the earth (g = 9.80 m/s2) and on the...
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