A 68 kg student runs up a flight of stairs that is 7 m high in 9 seconds. Calculate

how much power is used.

A glass lying on table doesn't possess friction. why?

When a battery does 24 j of work on 10 c of charge, the voltage it supplies is?

Punnett squares are convenient ways to represent the types and frequencies of gametes and progeny in experimental crosses. this punnett square shows the results of a yy x yy cross to form f2 progeny.

Objects 1 and 2 attract each other with a electrostatic force of 18.0 units. If the distance separating Objects 1 and 2 is changed to four times the original value (i. e., quadrupled), then the new electrostatic force will be units.

A 0.060 kg ball hits the ground with a speed of - 32m/s. The ball is in contact with the ground for 45 milliseconds and the ground exerts a + 55 N force on the ball. What is the magnitude of the velocity after it hits the ground? A. 9.3m/s B.

The speedometer in your car reads 55mi/h this represents ___ of the car

What is the speed of a plane that traveled 1500 km in 2.5 hours? How far would that same plane travel in eight hours if it maintained a constant speed?

A 75 W lightbulb is being run on a 110 V outlet. Determine the resistance of the lightbulb. Provide a detailed description of the process.

A circuit contains two 1.5 volt batteries and a bulb with a resistance of 3 ohms. Calculate the current.

What type of friction acts when the books are at rest but a force is exerted?