Why do rivers usually have water in them, even during a drought?

If wind is slackening, which of the following statements is true? It is not as windy now as it was a little while ago. It is windier now than it was a little while ago. The wind is now mixed with rain and sleet.

What does the term wavelength refer to?

Bill has a mass of 85 kg and is skating west. He increases his speed from 3 m/s to 5 m/s by applying a force for 3 seconds. What force did he apply?

An object is suspended from the ceiling with two wires that make an angle of 40° with the ceiling. The weight of the body is 150 N. What is the tension in each wire? 41.6 newtons 82.3 newtons 150 newtons 117 newtons

Distinguish between theoretical mechanical advantage. How would these compare if a machine were 100percent efficient?

How are hypotheses and theories related to each other?

a bike can climb the inclined road at uniform speed of 72 km/hr by applying force 500N what will be the power applied by the bike?

According to bohr's theory, how do electrons move around the nucleus

On a very hot summer day, railroad tracks can buckle, causing train delays and derailments. Select the best reason below for the buckling.

How long will it take you to swim 100 meters if you swim at a speed of 12.5 m/s?