A 5kg ball moving at 10 m/s to the right collides with a 2 kg ball at rest. After the collision, the 5 kg ball moves at 3.5 m/s to the right. What is the velocity of the of the 2 kg ball? (Elastic collision)

What distance does a car travel as its speed changes from 0 to 20 m/s in 17 s at constant acceleration?

To find the mass defect for uranium-238 several calculations must be made. which is the calculation that should be made first? assume atomic number for uranium-238 is 92. a. 92(1.0073) x 92(1.0087) = b. 92(1.0073) x 146(1.0087) = c. 146(1.0073) x 238(1.0087) = d. 238(1.0073) x 238(1.0087) =

During which step of the scientific method does a scientist make an educated guess about the outcome of an experiment? a. form a hypothesis b. analyze the results c. design an experiment d. collect data