Two long current-carrying wires run parallel to each other and are separated by a distance of 4.50 cm. If the current in one wire is 1.30 A and the current in the other wire is 3.20 A running in the opposite direction, determine the magnitude and direction of the force per unit length the wires exert on each other.

Aresearcher plans to conduct a test of hypotheses at the 1% significance level. she designs her study to have a power of 0.90 at a particular alternative value of the parameter of interest. the probability that the researcher will commit a type ii error for the particular alternative value of the parameter at which she computed the power is: a. 0.90. b. 0.01. c. 0.10. d. equal to 1

How much force must a locomotive exert on a 12840-kg boxcar to make it accelerate forward at 0.490 m/s2?

A-of 75 cm by cm by 17.5 cm up. of is 2 kg a , in ,if it is in , kg/?