Choose the correct answer. 1. A metal that is liquid at room temperature is
a)
Sodium
b) Potassium
c) Magnesium
d)
Mercury
2.
The two metals which have very low melting point

Energy flows from the producer level to the level. is called

An air-filled capacitor is formed from two long conducting cylindrical shells that are coaxial and have radii of 26 mm and 103 mm. the electric potential of the inner conductor with respect to the outer conductor is - 700 v (k = 1/4πε 0 = 8.99 × 109 n · m2/c2) the energy stored in a 1.0-m length of this capacitor is closest to

The diagram shows a boulder rolling down a hill into a valley and then up the opposite hill. at which position does the boulder have the greatest kinetic energy? a b c d