Compared to the charge of proton, the charge of an electron has A) The greater magnitude and opposite sign B) The same magnitude and the opposite sign C) The same magnitude and the same sign D) The greater magnitude and the same sign

C. I'm pretty sure because I just took that test but I'm not sure

the small 0.38-kg slider is known to move from position a to position b along the vertical-plane slot. determine (a) the work done on the body by its weight and (b) the work done on the body by the spring. the distance r = 0.70 m, the spring modulus k = 154 n/m, and the unstretched length of the spring is 0.53 m

explanation:

-reverse card

k2s for potassium sulphide