Ablock slides along a path that is without friction until the block reaches the section l = 0.80 m, which begins at a height h = 2.5 m on a ramp of angle θ = 20 o . in that section, the coefficient of kinetic friction is 0.50. the block passes through point a with a speed of 8.0 m/s. if the block can reach point b (where the friction ends) what is the speed there, and if it cannot, what is its greatest height above a?

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

Because air contracts as it cools, the air pressure inside a freezer is typically lower than on the outside. why do ice cubes inside a freezer tend to shrink over time? a. the ice dissolves oxygen from the air, forming a denser crystalline matrix.b. the ice reacts chemically with carbon dioxide in the air, forming gaseous carbon compounds.c. the ice melts, and then the liquid freezes as ice crystals on the bottom of the freezer.d. the ice sublimes, and then the water vapor deposits as ice crystals on the sides of the freezer.

Which situation will produce the greatest change of momentum