Physics, 14.12.2019 01:31 richchillnqueenz1ma
Which is an example of the electromagnetic force?
a) a compass needle points north toward earth’s magnetic pole.
b) an iron nail rolls off a table and falls to the ground
c) the moon pulls on the water on earth’s oceans, causing tides
d) protons that make up a nitrogen atom stay together in the nucleus
Answers: 3
Physics, 22.06.2019 16:30
The sound level near a noisy air conditioner is 70 db. if two such units operate side by side, the sound level near the, would bea. 70dbb. 73 dbc. 105 dbd 140 db
Answers: 3
Physics, 23.06.2019 00:10
During cooling, the kinetic energy of the molecules falls. why does this happen? a.the motion of the molecules increases. b. the motion of the molecules slows down. c.the van der waals forces between molecules decrease d. the forces of attraction between the molecules are overcome.
Answers: 2
Physics, 23.06.2019 00:30
Madison lives near the ocean. she’s formed a hypothesis that increased concentrations of salt in the air speeds the corrosion of certain metals. if madison plans to test this hypothesis, she will have to deal with the following variables in her experiment: dependent variable: independent variable: one possible confounding variable:
Answers: 1
Which is an example of the electromagnetic force?
a) a compass needle points north towa...
a) a compass needle points north towa...
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