Physics, 06.03.2020 03:12 bihanna1234
A small metal ball is given a negative charge, then brought near (i. e., within about 1/10 the length of the rod) to end A of the rod ) What happens to end A of the rod when the ball approaches it closely this first time?
a. It is strongly repelled.
b. It is strongly attracted.
c. It is weakly attracted.
d. It is weakly repelled.
e. It is neither attracted nor repelled.
Answers: 2
Physics, 22.06.2019 03:10
Aphysical change is a change in the size, shape,, or stafe of matter true or false
Answers: 1
Physics, 22.06.2019 05:50
Sawyer is studying diffraction. he draws a diagram of a plane wave to show how light waves travel. which best describes sawyer’s error? the wave fronts should be perpendicular to the direction in which the waves move. the arrow showing the direction of movement of the waves should be pointing to the left. the arrow showing the direction of movement of the waves should be pointing downward. the wave fronts should be both parallel and perpendicular to the direction in which the waves move.
Answers: 2
Physics, 22.06.2019 06:30
Air initially at 0.75 bar, 1000 k, and occupying a volume of 0.12 m^3 undergoes two processes. process 1-2: the air is compressed isothermally until the volume is halved. process 2-3: the air undergoes a constant pressure process until the volume is halved again. assume ideal gas behavior. a) determine the mass of the air, in kg. b) the work and the heat transfer for each of the two processes, in kj. (100 kj = 1 bar . m^3)
Answers: 1
A small metal ball is given a negative charge, then brought near (i. e., within about 1/10 the lengt...
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