An object being swung in circles on the end of rope is an example of projectile motion.

a. true

b. false

A 600‑kg car accelerates at a rate of 3 m/s2. How much net force is acting on the car to cause this acceleration?

You throw a 5.5 g coin straight down at 4.0 m/s from a 25-m-high bridge. A) How much work does gravity do as the coin falls to the water below? B) What is the speed of the coin just as it hits the water?

A baby cow has a mass of 100 kg and chases its mother at a speed of 0.5 m/s. What is the magnitude of its momentum?

Which statement is not true of a batholith? It is often a small part of a sill. It may be uplifted and then exposed by erosion. It is the largest intrusive igneous body. It may form the core of a mountain range. Description

A hot air balloon is rising vertically with a velocity of 10.0 feet per second. A very small ball is released from the hot air balloon at the instant when it is 960 feet above the ground. Use a (t) = -32 ft/sec2 as the acceleration due to gravity. 1.

Which of these is not a gas? O A. Oxygen O B. Gravity O c. Helium O D. Hydrogen

Two vectors which do not lie along the same line represent what kind of motion? A. Resultant motion B. Scalar motion C. One-dimensional motion D. Two-dimensional motion

In which one of the following four-stroke cylinder arrangements will the intake and exhaust valves open downward into the combustion chamber? A. K-type B. C-type C. T-type D. I-type

Why did alpha particles bounce back

A hockey player has an acceleration of - 3.1m/s2 how long does it take him come to a complete stop from a speed of 13m/s