Coherence is the property by which two waves with identical wavelengths maintain a constant a. amplitude. c. phase relationship. b. frequency. d. speed.

A sled and rider, gliding over horizontal, frictionless ice at 4.5 m/s, have a combined mass of 74 kg. The sled then slides over a rough spot in the ice, slowing down to 2.6 m/s.

What happens when an object is dropped? A. Its velocity at 2 seconds is 19.6 m/s. B. Its velocity at 2 seconds is 9.8 m/s. C. Its velocity at 2 seconds is 20 km/h. D. Its velocity at 2 seconds is 22 mph.

Why is acceleration called vector quantity

Overtime, the mushrooms that grow in a certain forest have been over harvested by humans. As a result, the number of mushrooms in the area has decreased dramatically. How will this most likely affect the environment?

If the goal of the turbine is to put out electric energy, what is the efflciency of the turbine?

Which describes a property shared by ultraviolet light and X-rays? A They are both transverse waves. B They share the same wavelength. C They contain less energy than visible light. D They both require a medium to travel through.

What is the potential energy called that is associated with objects that can be stretched

Which of the following is not a current use of radioisotopes? medical diagnosis sterilization of equipment detection of leaks in building structures light fixtures

A Blu-ray disc is approximately 11 centimeters in diameter. The drive motor of a Blu-ray player is able to rotate up to 10,000 revolutions per minute. (a) Find the maximum angular speed (in radians per second) of a Blu-ray disc as it rotates

A body has translatory motion if it moves along a