Physics, 11.06.2020 22:57, dajeourcrazy15

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: 2

Show answers

Other questions on the subject: Physics

Physics, 22.06.2019 10:30, SauceyNaee

Aparticle moves in the xy plane with constant acceleration. at time zero, the particle is at x = 6 m, y = 8.5 m, and has velocity ~vo = (9 m/s) ˆı + (−2.5 m/s) ˆ . the acceleration is given by ~a = (4.5 m/s 2 ) ˆı + (3 m/s 2 ) ˆ . what is the x component of velocity after 3.5 s? answer in units of m/s.

Answers: 1

continue

Physics, 22.06.2019 11:50, kelseybell2707

An electron is traveling with initial kinetic energy k in a uniform electric field. the electron comes to rest momentarily after traveling a distance d. (a) what is the magnitude of the electric field

Answers: 3

continue

Physics, 23.06.2019 04:31, ayoismeisalex

Water flows through a garden hose which is attached to a nozzle. the water flows through hose with a speed of 2.19 m/s and through the nozzle with a speed of 19.8 m/s. calculate the maximum height (in m) to which water could be squirted if it emerges from the nozzle and emerges with the nozzle removed.

Answers: 1

continue

Physics, 23.06.2019 05:30, geo58

20) what is a magnetic field? 21) in which direction do magnetic field lines always point? 22) sketch a diagram showing how a plotting compass points around a 23) name two magnetic poles that will: a) attract each other b) repel each other. 24) explain why you can use a compass to navigate. 25) what's an electromagnet? 26) list two ways to increase the strength of an electromagnet. 27) the wire in a simple motor feels a force when a current flows through it. why is this? i need answers to check mine

Answers: 1

continue

Do you know the correct answer?

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