The 4.50 cm long second hand on a watch rotates smoothly.

1. What is its angular speed?

2. What is the speed of the tip of the hand?

A mouse is placed in a sealed chamber with air at 755.0 torr. This chamber is equipped with enough solid KOH to absorb any CO2 and H2O produced by the mouse. The gas volume in this chamber is measured to be exactly 2.

How are engineers creating clothing that can charge your cell phone. Explain the science behind their innovation.

2-kg bowling ball falls off a 40 meter high building at a rate of 19.8 meter per second 1. Does the bowling ball have more potential energy or kinetic energy as it sit on top of the building? Why?

What is thicker timer

At what temperature did the substance in the test tube into a solid?

Which defintion of heat is most scientifically accurate

What is the name of the effect that causes water to travel at an angle to trade winds?

Two books with different masses fall off the same bookshelf. As they fall, which has more kinetic energy and why

Which of the following is an example of convection? a a hot object transferring heat to a cooler one b the rays of the Sun warming the earth c a hot oven warming the air around it d hot air rising and cooler air falling

Bob drove from home to work at 60 mph. after work the traffic was? heavier, and he drove home at 50 mph. his driving time to and from work was 1 hour and 28 minutes. how far does he live from his? job?