Physics, 06.05.2020 03:01 shawnr6989
Many stereo speaker cables are made of copper wire surrounded by rubber. The electricity travels down the copper portion of the cable while the rubber protects you from being "zapped" by the electricity. Which physical property explains the difference in ability of copper and rubber to transmit electricity?
Answers: 1
Physics, 21.06.2019 15:10
Consider the following problem: a box with an open top is to be constructed from a square piece of cardboard, 3 ft wide, by cutting out a square from each of the four corners and bending up the sides. find the largest volume that such a box can have.
Answers: 3
Physics, 22.06.2019 04:10
Atotal charge of β6.50 Β΅c is uniformly distributed within a sphere that has a radius of 0.150 m. what is the magnitude and direction of the electric field at 0.300 m from the surface of the sphere? a) 2.89 Γ 105 n/c, radially inward b) 6.49 Γ 105 n/c, radially outward c) 4.69 Γ 105 n/c, radially inward d) 9.38 Γ 105 n/c, radially outward e) 1.30 Γ 106 n/c, radially inward
Answers: 3
Physics, 22.06.2019 05:30
An object weighs 40n in air, weighs 20n when submerged in water and 30n when submerged in a liquid of unknown density. what is the density of the liquid?
Answers: 2
Physics, 22.06.2019 14:30
The man of mass m1 and the woman of mass m2 are standing on opposite ends of the platform of mass m0 which moves with negligible friction and is initially at rest with s = 0. the man and woman begin to approach each other. derive an expression for the displacement s of the platform when the two meet in terms of the displacement x1 of the man relative to the platform.
Answers: 1
Many stereo speaker cables are made of copper wire surrounded by rubber. The electricity travels dow...
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