A brand of a lightbulb has a power of 55w and an efficiency of 1.6% how much power is wasted as heat by this lightbulb

Which tool would you use to measure the amount of rainfall? a. graduated cylinder b. stopwatch c. scale d. thermometer

How is it possible for one electrically neutral atom to exert an electrostatic force on other electrically neutral atom?

The electric meter for a new house is furnished by the A. electrician. B. electric company. C. homeowner. D. contractor.

What criteria might be used to establish someone as an expert witness?

Maurice pulls on the end of a spring scale. He lets go of the end and observes the spring snap back into place. What force restores the spring to its original shape? a. tension b. elastic c. drag d. applied

Two samples of water sample a mass at 100 G BB mass at 250 g they both have the same initial temperature and are allowed to cool to room temperature what would be the temperature change in Sample be compared to sample a

Mrs. Perez added a room temperature copper cube and an aluminum cube she just removed from the freezer to a beaker of boiling water. She left thw cubes in the water for three hours.

List some exothermic and endothermic processes

You did 200 of work lifting a 150 newton-pack. how high did you lift the bookbag

What is meant by e. m. f. class 10 physics.