33. 2075 set a q. no. 102 the sun is a black body of surface
temperature about 6000k. if sun's radius is 7x108m.
calculate the energy per second radiated from its surface.
the earth is about 1.5x1011 m from the sun. assuming all
the radiation from the sun falls on the surface of sphere of
this radius, estimate the energy per second per meter?
received by the earth
141

Arotating space station is said to create “artificial gravity”—a loosely-defined term used for an acceleration that would be crudely similar to gravity. the outer wall of the rotating space station would become a floor for the astronauts, and centripetal acceleration supplied by the floor would allow astronauts to exercise and maintain muscle and bone strength more naturally than in non-rotating space environments. if the space station is 200 m in diameter, what angular velocity would produce an “artificial gravity” of 9.80 m/s^{2} 2 at the rim?

Use the right-hand rule for magnetic force to determine the charge on the moving particle. this is a charge.

Asap i'm in class rn a 1,000-kg car is traveling 20 m/s on a flat stretch of road. it gets to a hill and coasts uphill until it stops. how high up the hill does the car travel? givens: equation: 1/2mv2initial=mghfinal solve for h. plug & chug, label.