Day and night are caused by

a. the tilt of Earth's axis.

b. Earth's revolution around the sun.

c. eclipses.

d. Earth's rotation on its axis.

The electrician's main source of information about electrical installation rules and regulations is the

a stone is thrown by a person from the top of the building, which is 200m tall. at the same time, another stone is thrown with verlocity of 50m/s by a person standing at the foot of the building. find the time after which the two stones meet.

The highest peak in the vicinity (<100 kilometers) of Mt. Kilimanjaro is located to the: a. north. b. west c. east. d. south. e. northeast

what determines the quality of a conductor

What is SONAR? How does it Work?

What does the color of a star determine

Scientific cosmology Choose one: A. investigates the overall structure and history of the Universe. B. pertains to legends and verbal history about the beginnings of the Universe. C. proves the Big Bang theory. D.

Which statement best describes longitudinal waves? A) Particles of the wave medium move perpendicular to the direction of propagation of the wave. B) Longitudinal waves do not require a material medium for propagation.

Three-fourths of the Earth's surface is covered by water. The water cycle includes these water sources evaporating and returning to Earth as rain and snow.

An object with a mass of 10.9 kg experiences a force of 18.53 N. What is the acceleration of the object? A. 2.2 m/s2 B. 1.7 m/s2 C. 16.83 m/s2 D. 1.3 m/s2