The current in an electron beam in a cathode ray tube is 7.0 x 10^-5 a. a beam of electrons is aimed at a screen. how much charge hits the screen in 5.0s? a- 2.8x10^3 c b-5.6x10^-2 c c-3.5x10^-4 c d-5.3x10^-6 c

If 21.2 kcals of energy is released by this reaction, how many kj does the reaction release? (1 cal 4.184 j)

Which graph represents motion with an object with positive velocity that is located at a position of 3 meters at a time of 0 seconds? a) a b) bb eliminate c) c d) d

Identify the correct relation showing that the radius r of the orbit of a moon of a given planet can be determined from the radius r of the planet, the acceleration of gravity at the surface of the planet, and the time τ required by the moon to complete one full revolution about the planet. determine the acceleration of gravity at the surface of the planet jupiter knowing that r = 71 492 km and that t= 3.551 days and r= 670.9 × 10^3 km for its moon europa.