7. Bianca is running at 5 m/s and sees her friend Chloe ahead of her and so she speeds up to 7 m/s in 8 seconds. What is Bianca's average acceleration during the 8 seconds?

Ablock of mass 1.5 kg slides down an inclined plane that has an angle of 15. if the inclined plane has no friction and the block starts at a height of 3 m, how much kinetic energy does the block have when it reaches the bottom? acceleration due to gravity is g = 9.8 m/s2. a. 6.8 j b. 50.9 j c. 0 j d. 44.1 j

Two polarizers are oriented at 70∘∘ to one another. unpolarized light falls on them. what fraction of the light intensity is transmitted?

One form of energy can be another type of energy. a. created to form b. transformed into c. destroyed and then created to form