Abody of mass 2 kg is moving in the positive x-direction with a speed of 4 m/s collides head on with an another body of mass 3 kg moving in the negative x-direction with a speed of 1 m/s . during collision a loud sound is heard and they both start moving together . the sound energy cannot be greater than :
a) 12 j
b) 14 j
c) 15 j
d) 17.5 j

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?

A20 cm long spring is attached to a wall. the spring stretches to a length of 22 cm when you pull on it with a force of 100 n. what is the spring constant

Using the free-body diagram, calculate the net force acting on the sled. is the sled in a state of dynamic equilibrium?