How many kilometers equals one astronomical unit?
a) about 100 million kilometers
b) about 150 million kilometers
c) about 200 million kilometers
d) about 250 million kilometers
e) about 300 million kilometers

State one advantage and one disadvantage of using a plane mirrior as a driving mirrior

What is the power rating of the lightbulb if 3.0 a flow through it when connected to a 15 v battery

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.