Suppose a bird takes off from a tree and flies in a straight line. it reaches a speed of 1o miles per second. what is the change in the bird's velocity?

What properties of a moving object are used in determining the object's energy of motion

Which is the correct symbol for an isotope of iodine with 53 protons and 78 neutrons?

Which statement is true if the refractive index of medium a is greater than that of medium b? a. total internal reflection is possible when light travels from air to medium b to medium a. b. total internal reflection is possible when light travels from medium a to medium b. c. total internal reflection is possible when light travels from medium b to medium a. d. total internal reflection is possible when light travels from air to medium a. e. total internal reflection is possible when light travels from air to medium b.