Rubber is unusual in that it shrinks or contracts when heated. Warming a rubber ball will -

A. decrease its density.

B. cause its volume to remain the same.

C. increase its density.

D. decrease its mass.

Name three common units for measuring speed

A wave of infrared light has a speed of 6m/s and a wave length of 12 m. What is the frequency of this wave? A) 0.5 Hz B) 2. p Hz C) 18 Hz D) 72 Hz

A train travels 85 kilometers in 5 hours, and then 63 kilometers in 5 hours what is its average speed?

How does the buoyant force on a submerged object compare with the weight of the water displaced? How does the buoyant force on a submerged object compare with the weight of the water displaced?

If an athlete executing a long jump leaves the ground at a 30° angle and travels 7.80 m, what was the takeoff speed

Using a cathode ray tube, Thomson confirmed that atoms must have an overall positive charge. atoms are made of particles that have a negative charge. electrons in atoms must have varying amounts of energy. electrons are only found in the nucleus.

A ball is rolled along the inside of a partial hoop lying flat on a table. which path will the ball follow when it gets to the end of the hoop?

What pattern of material movement found in the Earth system tracks how an element moves from living to nonliving parts? a. rock cycle b. calcium cycle c. carbon cycle d. none of the above

Why is the monolith el capitan in yosemite national park more resistant to erosion than other igneous plutons in the park?

Block A weighs 1.20 N and block Bweighs 3.60 N. The coefficient of kinetic frictionbetween all surfaces is 0.300.