Physics, 25.09.2019 05:30 lovelyheart5337
The acceleration of gravity on the moon is about 1.6 m/sec2. an experiment to test gravity compares the time it takes objects to reach a speed of 10 m/sec after being dropped from rest. how long does an object dropped on the moon have to fall compared to an object dropped on earth?
a. 1.6 times as long
b. 6.1 times as long
c. 9.8 times as long
d. 15.7 times as long
Answers: 1
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According to social exchange theory, altruistic behaviors benefit the individual who performs them.
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If element x has 99 protons how many electrons does it have
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Physics, 22.06.2019 18:30
Two 2.0-cm-diameter disks face each other, 1.0 mm apart. they are charged to ±10 nc. what is the electric field strength between the disks? a proton is shot from the negative disk toward the positive disk. what launch speed must the proton have to just barely reach the positive disk?
Answers: 1
Physics, 22.06.2019 19:40
Uranium has two naturally occurring isotopes. 238u has a natural abundance of 99.3% and 235u has an abundance of 0.7%. it is the rarer 235u that is needed for nuclear reactors. the isotopes are separated by forming uranium hexafluoride uf6, which is a gas, then allowing it to diffuse through a series of porous membranes. 235uf6 has a slightly larger rms speed than 238uf6 and diffuses slightly faster. many repetitions of this procedure gradually separate the two isotopes. what is the ratio of the rms speed of 235uf6 to that of 238uf6? express your answer to five significant figures.
Answers: 3
The acceleration of gravity on the moon is about 1.6 m/sec2. an experiment to test gravity compares...
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