V391 pegasi b is a star that is 4,570 light years away from earth. what is this distance in kilometers? (one light year is about 9.46 trillion kilometers.) 4,323 trillion kilometers 4,323 kilometers 43,232 kilometers 43,232 trillion kilometers 43,232 billion kilometers nextreset

In positive numbers less than 1, the zeros between the decimal point and non zero are significant

In a good thermo flask the main cause of heat loss is

Aball with a mass of 275 g is dropped from rest, hits the floor and rebounds upward. if the ball hits the floor with a speed of 2.40 m/s and rebounds with a speed of 1.70 m/s, determine the following. (a) magnitude of the change in the ball's momentum (let up be in the positive direction.)