A 12 kg sled is pulled across the snow with a force of 30 N. If the force is applied at an angle of 30° above the +x axis (u = .13):
A.) Find the x and y components of the applied force
B.) Find the force of gravity acting on the sled
c.) Calculate the normal force
D.) Calculate the frictional force
E.) Calculate the acceleration of the sled

Explain why you think this diagram shows what happened to the carbon in the biodome.

Students in an introductory physics lab are performing an experiment with a parallel-plate capacitor made of two circular aluminum plates, each 11 cm in diameter, separated by 1.0 cm. how much charge can be added to each of the plates before a spark jumps between the two plates? for such flat electrodes, assume that value of 3×106n/c of the field causes a spark.

Aprisoner is forced to go into one of three rooms, but he can choose which room. the first room is ablaze with fire. the second one is rigged with explosives that will go off as soon as he enters. the third contains a pair of lions who haven't eaten in years. which room should he choose to survive?