Two boys are sitting face to face on a frictionless surface of ice. Bob has a mass of 20kg and Frank has a mass of 40kg. The two boys push off one another with a force lasting 0.25 seconds. Frank begins sliding to the right at a speed of 3.14 m/s Calculate speed and direction of Bob after the push.

Calculate the magnitude of the force between them during the push off.

The arrival of in the early days of europa’s existence could have formed its ocean. it is likely that the water experienced similar to earth. it is also possible that this water is retained beneath europa’s surface and in its atmosphere due to europa’s . 1.) a. precipitation b. water vapor c. icy debris 2.) a. gravitational compression b. biochemical cycling c. radiogenic heating 3.) a, gravity b. magnetic field c. heat energy for plato

Which accurately compares concave and convex lenses?

For most stars, what does a higher temperature tend to to with? a lower luminosity a higher luminositya red color none of the above