A current of 5A is flowing through a 2mm diameter wire. The drift speed of electrons in the wire is 10-5m/s and the charge on the electron is 1.6*10-19C. Calculate the number of electrons passing a point in the wire. Select one:

a. 9.947*109

b. 9.947*1019

c. 5.67*1030

d. 9.947* 1029​

Ablock of mass m = 2.5 kg is attached to a spring with spring constant k = 790 n/m. it is initially at rest on an inclined plane that is at an angle of 28 degrees with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is k = 0.14. in the initial position, where the spring is compressed by a distance of a = 0.18 m, the mass is at its lowest position and the spring is compressed the maximum amount. take the initial gravitational energy of the block as zero. b) if the spring pushes the block up the incline, what distance, l, in meters will the block travel before coming to rest? the spring remains attached to both the block and the fixed wall throughout its motion.

Road users moving into your lane, brake lights, and abrupt changes in road surface are a. rare at night b. indicators of potential hazards c. not worth worrying about before you reach them d. no problem for experienced drivers

Urgent i will give brainliest farmer dantzler brings her prize pig, penny, to the annual country fair. if the mass of the pig is 140 kg, what is the weight? (what are you solving for? what is your formula? what unit do you use to represent weight? you can do it! ) your a.14 g b.140 n c. 1400 kg d. 1372 n show me how to work it too