Which definition is correct and uses only quantities rather than units? A. Density is mass per unit volume B. potential difference is energy per unit current C. Pressure is force per unit area D. speed is distance travelled per second

A catapult launches a boulder with an upward velocity of 92 m/s. the height of the boulder, h, in meters after t seconds is given by the function h=-5t^2+92t+16. how long does it take to reach maximum height? what is the boulders maximum height?

If a car has an initial speed of + 15 meters/second and a constant acceleration of + 1 meter/second2, how much distance will it travel in the first 10 seconds after the acceleration begins?

Alcohol begins to affect your brain when

Sentences and facts for the laws of motion.

Why do protons repel protons but attract electrons?

A 29 foot ladder leans against a building so that the angle between the ground and the ladder is 75 ∘. How high does the ladder reach up the side of the building? Round to 2 decimal places.

What is a difference between an isotope and a ion

2. An airplane travels 335 miles in 45 minutes. How fast does it travel? How fast is that in km/hr?

A falling skydiver opens his parachute. A short time later, the weight of the skydiver-parachute system and the drag force exerted on the system are equal in magnitude.

Consider the expression below. Assume m is an integer. 6m (2m + 18) Enter an expression in the box that uses the variable m and makes the equation true. (Simplify your answer completely. If no expression exists, enter DNE.)