Compare the distance-time graph for a fast-moving object with the distance time graph of a slower moving object.
Ball 1, with a mass of 10kg, is moving to the right at 20m/s. Ball 2 is moving to the left at 20 m/s. Upon collision, ball 2 comes to a standstill, and ball 1 moves to the left at twice its original speed. What is the mass of Ball 2?
A man pushes on a box at an angle of 30.0° with a force of 20.0 N and the box moves across the floor. Which of the following component of the force do you use to calculate work?
A 200 g model rocket is observed to rise 100 m above the ground after launch. What must have been the launch speed of the rocket at the ground?
Why is dark matter important to study? a. it helps to estimate the mass of the universe. b. it helps to estimate the number of atoms in the universe. c. it helps to estimate the age of the universe. d. it helps to estimate the temperature of the universe.
A 1,600 kg car traveling north at 10.0 m/s crashes into a 1,400 kg car traveling east at 15 m/s at an unexpectedly icy intersection. The cars lock together as they skid on the ice. What is their speed after the crash?
PLEASE HELP!!! THIS IS FOR 10 POINTS!!! Does soil heat differently based on if it's moist or dry? Explain your answer.
