The specific heat of gold is 0.126 j/g°c. what mass of gold would change its temperature from 25.0 °c to 60.0 °c with the addition of 2825 j of heat energy? a 570 g b 641 g c 540 g d 610 g

The amount of heat energy needed to increase the temperature of a substance by  is given by:

where m is the mass of the substance, Cs is its specific heat capacity and  is the increase in temperature of the substance.

In this problem, we have a certain mass m of gold, with specific heat capacity , to which we add Q=2825 J of energy. Its temperature increases by . Therefore, if we re-arrange the previous equation, we can find the mass of the block of gold:

So, the correct answer is B.

The answer is a 0.64 volts

Is a  vector quantity  that refers to "the rate at which an object changes its position." imagine a person moving rapidly - one step forward and one step back - always returning to the original starting position. while this might result in a frenzy of activity, it would result in a zero velocity. because the person always returns to the original position, the motion would never result in a change in position. since velocity is defined as the rate at which the position changes, this motion results in zero velocity. if a person in motion wishes to maximize their velocity, then that person must make every effort to maximize the amount that they are displaced from their original position. every step must go into moving that person further from where he or she started. for certain, the person should never change directions and begin to return to the starting position.