Physics, 12.01.2021 17:40 amselah4955
Telephone and electrical lines are allowed to sag between poles so that the tension will not be too great when something hits or sits on the line. Suppose that a line were stretched almost perfectly horizontally betweern two poles that are 30 m apart. If a 0.25-kilogram bird perches on the wire midway between the poles and the wire sags 1.0 cm, what would the tension in the wire be?
Answers: 1
Physics, 21.06.2019 23:50, george27212
The discovery that the universe appears to be expanding led to a widely accepted theory called a.) the big bang theory b.) the doppler effect c.) hubble’s law d.) solar nebular theory e.) the seyfert theory
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Physics, 22.06.2019 06:00, nicollexo21
Using a pedometer, you walk 3000 steps in 20 minutes, so your speed is 150 steps/min. each of your steps is 0.7 m long. what is your speed? 150 steps/min=/s=/h
Answers: 1
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