A rocket sled travels 3400 meters in 20 seconds. The average speed is m/s.

Which of the following are considered noble gases? a. bromine b. neon c. argon d. chlorine

When you push downward on a book at rest on a table, you feel an upward force. does this force depend on friction? defend your answer.

Steelhead trout migrate up stream to spawn.occasionally they need to leap up small waterfalls to continue their journey. fortunately, steelhead are remarkable jumpers, capable of leaving the water at a speed of 8.0 m/s. a. what is the maximum height a steelhead trout can jump? b.leaving the water at 8.0 m/s, the trout lands on top of the water fall 1.8 m high. how long was it in the air?