Physics, 05.07.2020 01:01 southerntouch103

A copper wire of length L and cross-sectional area A has resistance R. A second copper wire at the same temperature has a length of 2L and a cross-sectional area of (1/2)A. What is the resistance of the second copper wire?

Answers: 1

Show answers

Other questions on the subject: Physics

Physics, 21.06.2019 23:00, xojade

Athermometer is removed from a room where the temperature is 70° f and is taken outside, where the air temperature is 10° f. after one-half minute the thermometer reads 60° f. what is the reading of the thermometer at t = 1 min? (round your answer to two decimal places.) ° f how long will it take for the thermometer to reach 30° f? (round your answer to two decimal places.)

Answers: 3

continue

Physics, 22.06.2019 09:00, cameronbeaugh

Yvette hangs a 2.4kg bird feeder in the middle of a rope tied between two trees. the feeder creates a tension of 480 n in each side of the the rope.

Answers: 1

continue

Physics, 22.06.2019 09:40, wi8wuwj283jendjdudjd

When you jump from an elevated position you usually bend your knees upon reaching the ground. by doing this, you make the time of the impact about 10 times as great as for a stiff-legged landing. in this way the average force your body experiences is a) less than 1/10 as great. b) more than 1/10 as great. c) about 1/10 as great. d) about 10 times as great.

Answers: 1

continue

Physics, 22.06.2019 23:30, china236

A6.0-kilogram cart initially traveling at 4.0 meters per second east accelerates uniformly at 0.50 meter per second squared east for 3.0 seconds. what is the speed of the cart at the end of this 3.0 second interval? (1) 1.5 m/s (3) 3.0 m/s (2) 5.5 m/s (4) 7.0 m/s

Answers: 1

continue

You know the right answer?

A copper wire of length L and cross-sectional area A has resistance R. A second copper wire at the s...