Heat engines use heat to do work. true or false.

A sprinter ran a 100 meter dash in 12.5 seconds. What was his speed?'

How many times could Haley fly bewteen the two flowers in 1 minute (60 seconds)

Linear acceleration is determined by the ratio of the net force on an object to the mass of the object. Based on this exploration, do you think there is a similar ratio that determines the angular acceleration of a rotating object?

What is projectile motion is caused by?

What instrument is used routinely to check a person's exposure to radiation?

A car travels along eastward with a constant velocity. the magnitude of the acceleration of the car is

What is the weight of a 65 kg astronaut on mars?

When lava cools, what type of Rock forms?

A uniformly charged conducting sphere of 1.1 m diameter has a surface charge density of 6.2 µC/m2. (a) Find the net charge on the sphere. (b) What is the total electric flux leaving the surface of the sphere?

A blow-dryer and a vacuum cleaner each operate with a voltage of 120 V. The current rating of the blow-dryer is 12 A, while that of the vacuum cleaner is 5.7 A. Determine the power consumed by (a) the blow-dryer and (b) the vacuum cleaner.