Which of the following materials is an insulator against electric current

A - a sliver spoon

B - aluminum foil

C-a glass pane

D - a copper penny

A student was heard saying "the mass of a ball on the moon is one sixth it's mass on earth"Give a reason why this statement is wrong?

What is the definition of visible white light wave (RoyGBive)

Completeaza urmatoarul enunt. La ... unui corp moleculele lui se misca mai incet.

Why do atoms move at different speeds depending on weather they are in liquids or solids?

A single-turn circular loop of wire of radius 5.0 cm lies in a plane perpendicular to a spatially uniform magnetic field. During a 0.02500.0250-/text{s}s time interval, the magnitude of the field increases uniformly from 200 to 300 mT.

What happens to wavelength as a wave leaves the air and enters the Perspex? a. It decreases c. It stays the same b. It increases d. It becomes irregular

Which of the following statements are correct? 1. Electrons and protons have identical masses but opposite charges. 2. Most of an atom's mass is concentrated in a small, positively charged, nucleus. 3.

What are some changes that can be caused by sound energy?

A cheetah can run at 30 m/s, but only for about 12s. How far will it run in that time

A car is traveling 80 km/h if the car's speed remains constant how far will it have traveled in 3 hours a. 3km b. 26.7km c. 80 km d. 240 km