The law of reflection states that if the angle of incidence is 78 degrees, the angle of reflection is ___ degrees.

An aquarium 4 m long, 3 m wide, and 2 m deep is full of water. Find the work needed to pump half of the water out of the aquarium. (Use the fact that the density of water is 1000 kg/m3, and use 9.8 m/s2 for g.)

A standard 1 kilogram weight is a cylinder 41.5 mm in height and 44.0 mm in diameter. what is the density of the material?

What increases when the frequency of a sound increases

Alexis is a scientist who is studying solid-state physics. Which activity would she most likely do as a part of this research?

The ability of a muscle group to exert sub-maximal forces against a resistance over numerous contractions is called A. muscle endurance. B. muscle overload. C. muscle progression. D. muscle strength.

Compare and contrast the results of a crash while the passengers are not wearing seat belts and while they are wearing seat belts

Which will produce a bigger acceleration: a force of 10.0 N acting on a mass of 5.0 kg, or a force of 5.0 N acting on a mass of 10.0 kg?

A proton accelerates from rest in a uniform electric field of 610 N/C. At some later time, its speed is 1.4 106 m/s. (a) Find the magnitude of the acceleration of the proton.

What does the law of conservation of matter state?

Heat flows due to: Select one: a. conduction b. convection c. radiation d. all of the above