When does a roller coaster have the most kinetic energy

A 2500 kg car traveling to the north is slowed down uniformly from an initial velocity of 27.0 m/s by a 7850 N braking force acting opposite the car's motion. What is the car's velocity after 2.52s? How far does the car move during the 2.

Solubility describes the ability of a substance to evaporate and separate out true or false

Sasha uses a basketball and a tennis ball to represent two astronomical bodies based on their sizes. Which of the following representations is the most correct based on what Sasha has?

An extended period when temperatures are well below average is known as a/an A. drought. B. ice age. C. cold wave. D. draft.

What formula is used to calculate average speed?

Which of the advantages to social media as a new media could also be viewed as a disadvantage

At which approximate light intensity does the oxygen production begin to level off? a. 40% b. 60% c. 80% d. 100%

When a light shines through an object it is called

A man goes from his house to office with a speed of 57km/hr and returns to the house with a speed of 83km/hr in his car. Calculate the average speed of the car.

Identify several factors in the environment that can affect physical fitness levels.