Assuming all the substances are already at the temperature that is their melting point, we only need to worry about the heat required to change state, not the heat required to change temperature.
No calculations necessary for this question - just look at the latent heat of fusion. The higher this value, the more heat required per unit mass of the substance to melt it. Of the four answer options, aluminum has the highest value and therefore will take the most heat to melt the same mass.
Answer:
Explanation:The work done is twice as great for block B because it is moved twice the ... Equal forces are used to move blocks A and B across the floor. ... Does the normal force of the floor pushing upward on the block do any work? ... Suppose that the mass is halfway between one of the extreme points of its motion and the center point.
The transfer of heat that utilizes or occurs in the form of wave, would be B. Radiation. As heat, can be emitted in the form of waves which constitute or make up the electromagnetic spectrum, specifically these include UV Rays from the sun for instance.
Answer:
54 W
Explanation:
Power = Voltage* Current =V*I = 120V*0.45A =54 Watt
<span>They occur when the Earth, the Sun, and the Moon are in a line. </span>