Materials that allow the charges of an electric current to move freely through them are called

a. insulators.

b. conductors.

c. resistors.

d. magnets.

When a mass on a spring is at maximum displacement, what quantity is at the minimum

If a ball is thrown vertically upward from the ground with a velocity of 96 ft/s, then its height after t seconds is s = 96t - 16t2. what is the maximum height reached by the ball?

Which process is used to make a semiconductor into a transistor? A) removing valence electrons B) adding a dopant C) changing to a nonmetal D) applying voltage across the surface

A circular curve of highway is designed for traffic moving at 75 km/h. (a) If the radius of the curve is 145 m, what is the correct angle of banking of the road?

A single water molecule were oriented such that its dipole moment (magnitude 6.186 * 10 - 30 Cm is along a z axis. How much torque does an 8500 N/C electric field exert on the dipole if the field lies in x z - plane, 42 ∘ above the x - axis?

What is the pressure 100m below the surface of the sea, if the density of sea water is 1150kg/m3

The sum of three consecutive odd integers is - 27. A. {-7, - 9, - 11} B.{-10,-9,-8} C.{-5,-9,-13} D. {-11,-13,-15}

Ian has a mass of 58.0 kilograms. What is his weight?

A push of magnitude p acts on a box of weight w as shown in the figure. the push is directed at an angle θ below the horizontal, and the box remains a rest. the box rests on a horizontal surface that has some friction with the box.

A solenoidal inductor for a printed circuit board is being redesigned. To save weight, the number of turns is reduced by one-fifth, with the geometric dimensions kept the same.