Why do you think stars in white dwarfs group are so luminous even though they are relatively cool ?

Suppose an objects initial velocity is 10m/s and it’s final velocity is 4 m/s. mass is constant. what can best be concluded about the object based in the work-energy theorem

Debbie places two shopping carts in a cart corral she pushes the first cart which then pushes a second cart what force is being exerted

In order of decreasing light-transmitting capabilities of materials, which is the correct sequence? a. transparent -> translucent -> opaque b. opaque -> transparent -> translucent c. opaque -> translucent -> transparent d. translucent -> transparent -> opaque