Cuántas calorías se necesitan para calentar 1000 gramos de agua desde 25°C hasta 99°C

On your wedding day your lover gives you a gold ring of mass 3.67 g. 48 years later its mass is 3.44 g. on the average how many atoms were abrated from the ring during each second of your marriage? the atomic mass of gold is 197 u. don't enter units

Which of the following statements accurately describes the sign of the work done on the box by the force of the push? a. positive b. negative c. zero

A15 ohm resistor and a 25 ohm resistor are connected in parallel to a 60 volt battery. what is the power used by each device