Find an increase in temperature for a thermally insulated chunk of granite that takes about 13.4 million years to change temperature. (Assume that the specific heat capacity c of granite is 800 J

Emmy kicks a soccer ball up at an angle of 45° over a level field. she watches the ball's trajectory and notices that it lands, two seconds after being kicked, about 20 m away to the north. assume that air resistance is negligible, and plot the horizontal and vertical components of the ball's velocity as a function of time. consider only the time that the ball is in the air, after being kicked but before landing. take "north" and "up" as the positive ‑ and ‑directions, respectively, and use ≈10 m/s2 for the downward acceleration due to gravity.

Astudent pushes a 60-n block across the floor for a distance of 10 m. how much work was done to move the block

An element becomes a positively charged ion when itloses protons. loses electrons. gains electrons. gains neutrons.