A 4.90 kg mass with an initial velocity of 4.30 m/s, due east, collides with a 4.40 kg mass whose initial velocity is 2.70 m/s, due west. After the collision, the 4.90 kg mass has a velocity of 1.20 m/s, due south. A) What is the x-component of the velocity of the 3.60 kg mass after the collision? B) What is the y-component of the velocity of the 3.60 kg mass after the collision?
C) How much energy is dissipated in the collision?

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

Two 1.20-m nonconducting wires meet at a right angle. one segment carries + 2.50 µc of charge distributed uniformly along its length, and the other carries - 2.50 µc distributed uniformly along it, as shown in fig. 21.50. ( a. find the magnitude and direction of the electric field these wires produce at point p, which is 60.0 cm from each wire. ( b. if an electron is released at p, what are the magnitude and direction of the net force that these wires exert on it?

In a set amount of time, a battery supplies 25j of energy to an electric circuit that includes two different loads. one of the loads produces 10 j of heat energy during this time interval. how much heat energy is produced by the second load in this time? explain your answer