Which is a longitudinal wave that requires a medium to move

Which of the following describes the flow of charges through a wire or a conductor?

Which term best describes the phrase "something that happens"? A. Experiment B. Observation C. Hypothesis D. Phenomenon

Geothermal energy can be used to cool homes because: A. warm air comes from the atmosphere. B. the core is hot. C. cool air comes from deep within the crust.

Определите массу ящика с песком если на него действует сила тяжести 800 Н

Joanna's house is 8000 feet due west of her school. If her house is assigned the position of zero and her school is assigned the position of + 8000, what would be Joanna's position if she walked 100 feet west of her house?

Objects falling through the air experience a type of friction called air resistance. true or false

How big is a wifi pulse signal coming from your router? A) 10 meters B) 15 meters C) 5-10 meters D) 20-30 meters

Imagine you are in a music concert. What different sounds might you hear? How are these sounds made?

Dose aloe Vera grow in the mesa?

A tradesman sharpens a knife by pushing it against the rim of a grindstone. The 35 cm diameter stone is spinning at 200 rpm and has a mass of 28 kg. The coefficient of kinetic friction between the knife and the stone is 0.20.