Physics, 10.12.2019 17:31 quetzaliescalona
The graph below shows the salmon population, in thousands of pounds, in the columbia river, from 1866 to 1983.
based on the graph, which of these conclusions is most likely correct?
select one:
a. the salmon did not breed between 1866 and 1879.
b. the hydropower units on the river were deactivated after 1970.
c. a series of large hydropower units were built on the river after 1931.
d. a large amount of contaminants were present in the river between 1910 and 1912.
Answers: 3
Physics, 21.06.2019 22:40
Consider two metallic rods mounted on insulated supports. one is neutral, the other positively charged. you bring the two rods close to each, but without contact, and briefly ground the the neutral rod by touching it with your hand. show answer correct answer what would be resulting charge (if any) on the initially neutral rod
Answers: 1
Physics, 22.06.2019 12:40
Question part points submissions used suppose that 2 j of work is needed to stretch a spring from its natural length of 26 cm to a length of 36 cm. (a) how much work is needed to stretch the spring from 28 cm to 32 cm? (round your answer to two decimal places.)
Answers: 2
Physics, 22.06.2019 15:30
Ametal ring 4.20 cm in diameter is placed between the north and south poles of large magnets with the plane of its area perpendicular to the magnetic field. these magnets produce an initial uniform field of 1.12 t between them but are gradually pulled apart, causing this field to remain uniform but decrease steadily at 0.240 t/s . (a) what is the magnitude of the electric field induced in the ring? (b) in which direction (clockwise or counterclockwise) does the current flow as viewed by someone on the south pole of the magnet?
Answers: 2
The graph below shows the salmon population, in thousands of pounds, in the columbia river, from 186...
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