Which of the following is the SI base unit for temperature?

A system does 200 J of work and absorbs 100 J of heat. What is the change in internal energy of the system?

A device uses 60 watts of power and operates for 2 hours. How much energy in kilowatt-hours does it consume?

If a circuit has a current of 3 amperes and a resistance of 4 ohms, what is the power dissipated in the circuit?

Which of the following is a derived unit that can be expressed using only SI base units?