Physics, 07.04.2021 18:20 itz0nlyheav
A box of winter jackets of mass 109 kg is droped from a stationary helicopter at an altitude of 135
m. It lands the ground with a speed
of 10.0 m/s. During its fall, how much work
in Joule is done on
the box by air resistance (write magnitude only)?ā
Answers: 3
Physics, 21.06.2019 16:30
The mass of a muon is 207 times the electron mass; the average lifetime of muons at rest is 2.21 Ī¼s. in a certain experiment, muons moving through a laboratory are measured to have an average lifetime of 7.04 Ī¼s. for the moving muons, what are (a) Ī² (b) k, and (c) p? the rest energy of the electron is 0.511 mev.
Answers: 2
Physics, 22.06.2019 05:30
Suppose you have three polarizing filters, with the second at an angle of 42ā to the first and the third at an angle of 90ā to the first. by what perfect will the original intensity of unpolarized light be reduced to after passing through all three filters?
Answers: 2
Physics, 22.06.2019 10:00
During which interval are the persons represented by the graph not moving? a) 0 to 0.5 hrs b) 1.5 to 2 hrs c) 2 to 2.5 hrs d) 4.5 to 5 hrs
Answers: 1
Physics, 22.06.2019 16:00
The electric field direction is defined by the direction of the force felt by (select one of the following answers): 1. a negative charge. 2. a positive charge. 3. both positive and negative charges.
Answers: 2
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