Two pieces of clay are moving directly toward each other. when they collide, they stick together and move as one piece. one piece has a mass of 300 grams and is moving to the right at a speed of 1 m/s. the other piece has mass 600 grams and is moving to the left at a speed of 0.75 m/s. what fraction of the total initial kinetic energy is lost during the collision?

0.961

Explanation:

m1 = 300 g = 0.3 kg

u1 = 1 m/s

m2 = 600 g = 0.6 kg

u2 = - 0.75 m/s

Let after collision they move together with velocity v.

By using the conservation of linear momentum

Total momentum before collision = Total momentum after collision

m1 x u1 + m2 x u2 = (m1 + m2) v

0.3 x 1 - 0.6 x 0.75 = (0.3 + 0.6) v

0.3 - 0.45 = 0.9 v

v = - 0.166 m/s

Total initial Kinetic energy

Total final Kinetic energy

fraction of kinetic energy lost

a

explanation:

no diagram was provided, but i'm guessing it's the one i've attached to my answer.

here, a mechanical force turns the rod.   this generates an electric current in the coil, which powers the bulb.