Assuming 100%efficient energy conversio, how much water stored behind a 50 centimeter high hydroelectric dam would be required to charge the battery

the gas collects in coils that then becomes a liquid that then flows through the coils inside the refrigerator

the small 0.38-kg slider is known to move from position a to position b along the vertical-plane slot. determine (a) the work done on the body by its weight and (b) the work done on the body by the spring. the distance r = 0.70 m, the spring modulus k = 154 n/m, and the unstretched length of the spring is 0.53 m

explanation:

-reverse card

cant without the picture! ?

k2s for potassium sulphide