Ice floats on water because ice is less dense than water. how is this to fish that live in a lake? . a. it shades the fish from the sun.. b. it keeps the fish warm in the winter.. c. it the fish stay cold in the winter.. d. it blocks oxygen from reaching the water..

Which statement is true for light passing into a medium that is more optically dense than the first medium through which it past

What happens to the light rays when they hit the specimen?

20. threshold braking in the vehicle's braking system occurs when a. the brake pedal is pushed, heel on floorboard, with full foot pressure. b. the brakes are exerting full braking power, without traction loss. c. the driver begins pushing down the brake pedal, with moderate slowdown. d. the brakes just begin to take hold with a gradual slowdown.