Which parameter of the present universe, more than any other, is considered to be critical in determining the ultimate fate of the universe?

the brakes on a car do 240000j of work in stopping the car. if the car travels a distance of 40m while the brakes re being applied. how large is the average force that the brakes exert the car?

An aluminum cup contains 225 g of water and a 40-g copper stirrer, all at 27°C. A 470-g sample of silver at an initial temperature of 85°C is placed in the water.

A cheetah can run 100 meters in 7 seconds. What is the average speed for a cheetah? A goped drives 200 meters in 2 minutes. How fast is the goped going?

An incident ray of light strikes water at an angle of 30°. The index of refraction of air is 1.0003, and the index of refraction of water is 1.33. What is the angle of refraction rounded to the nearest whole number? 22° 24° 30° 42°

Rachel is wearing roller skates and is standing next to a wall. She pushes off from the wall and then glides to a stop. Plan an X in the lines next to all the statements that you think are true about Rachel's motion.

If the volume of a hot air balloon remains constant, what happens as the temperature of the air inside the balloon increases?

What is the correct formula for electrical power? l

Bernie drove home from a vacation in 1.5 hours. He traveled a total distance of 60 miles. What was his average speed in miles per hour

What advice a personal trainer most likely give u before a workout

An elevator supported by a single cable descends a shaft at a constant speed. The only forces acting on the elevator are the tension in the cable and the gravity. Which one of the following statements is correct? Group of answer choices A.