Santa has landed on your roof and delivered some slightly mediocre presents. On his way out his reindeer accelerate his sleigh at 50 m/s. The combined mass of Santa, the sleigh, and the presents for a billion kids is 5,600,000 kg. How much force do the reindeer apply to your
roof?

Space vehicles traveling through earth's radiation belts can intercept a significant number of electrons. the resulting charge buildup can damage electronic components and disrupt operations. suppose a spherical metallic satellite 1.3 m in diameter accumulates 3.0 µc of charge in one orbital revolution. (a) find the resulting surface charge density. (b) calculate the magnitude of the electric field just outside the surface of the satellite, due to the surface charge.

The most important difference between a wedge and an inclined plane is a. their size b. their shape c. how they are used d. what they are made of

The earth exerts a gravitational force of 500 n on amy. what is amy’s mass in kg?