Imagine two opposite flowing current sheets +k(t)amps/meter and -k(t)amps/meter, both flowing in the x-direction. the two current sheets are located at yi-h/2 and ½ they are separated bv a distance h along the y -direction. a positive charge q is placed at y = h > h/2 above the top plate. the currents slowly increase from k(t =-oo) 0. (a) calculate the induced electric field everywhere in space under a quasi-static approximation (b) calculate the momentum transferred to the point charge after the currents have reached their terminal values of k(t - +oo) - ko (c) derive the conditions under which the quasi-static approximation is valid

photocells convert light energy to electricity

the chart show the masses and velocities of two colliding objects that stick together after a collision.

according to the law of conservation of momentum, the momentum of the object after the collision is  

answer

1,500

kg • m/s.

note: the given question is incomplete.

complete question is given below.

which is an example of kinetic energy?

a. the energy stored in ethanol  

b. a hockey puck sliding across the ice  

c. a compressed spring  

d. a ball sitting at the top of a ramp

solution: the kinetic energy is the energy posses by the virtue of the motion of the object.

in the given options, a, c and d are the example of potential energy because it is the energy posses by the virtue of the rest of the object. but option b has the kinetic energy as the object is in motion.

hence, a hockey puck sliding across the ice   is the apex example of kinetic energy.

so, the option (b) a hockey puck sliding across the ice   is the correct option.

the answer is 12 as i may remember

: )