You wanted to use your electric grill in your backyard. You need an extension cord. What will be the requirement of your extension cord in order to use your electric grill without any incidents. Base your explanation on " the resistance of a conducting wire increases with the increasing length of a wire".
Answers: 2
Physics, 20.06.2019 18:02
Haley rubs a cotton cloth along a plastic strip. the plastic strip becomes positively charged. why did this happen? a. the plastic strip gained protons from the cotton. b. the plastic strip lost protons to the cotton. c. the plastic strip gained electrons from the cotton. d. the plastic strip lost electrons to the cotton.
Answers: 1
Physics, 21.06.2019 20:20
Ateam of astronauts is on a mission to land on and explore a large asteroid. in addition to collecting samples and performing experiments, one of their tasks is to demonstrate the concept of the escape speed by throwing rocks straight up at various initial speeds. with what minimum initial speed vesc will the rocks need to be thrown in order for them never to "fall" back to the asteroid? assume that the asteroid is approximately spherical, with an average density p 3.84 x108 g/m3 and volume v 2.17 x 1012 m3 recall that the universal gravitational constant is g 6.67 x 10-11 n m2/kg2
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Physics, 22.06.2019 08:00
Who was the first scientist to measure speed as distance over time?
Answers: 1
Physics, 22.06.2019 08:40
An isolated conducting spherical shell carries a positive charge. part a which statement (or statements) about the electric field and the electric potential inside and outside the spherical shell is correct? which statement (or statements) about the electric field and the electric potential inside and outside the spherical shell is correct? electric potential inside the shell is constant and outside the shell is changing as 1/r2 both the electric potential and the electric field does change with r inside and outside the spherical shell electric potential inside and outside the shell is constant, but not zero electric potential inside the shell is constant and outside the shell is equal to zero electric field inside and outside the shell is constant (does not change with the position r), but is not equal to zero electric field inside and outside the shell is changing as 1/r (where r is the distance from the center of the sphere) electric field inside is equal to zero and outside the shell is constant, but not zero electric potential inside the shell is constant and outside the shell is changing as 1/r electric field inside and outside the shell is changing as 1/r2 electric field inside is equal to zero and outside the shell is changing as 1/r2 electric field inside and outside the shell is zero electric field inside is constant and outside the shell is changing as 1/r
Answers: 3
You wanted to use your electric grill in your backyard. You need an extension cord. What will be the...
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