What doesnt change despite what planet you're on

What is the average speed of a car that travels 40mph for 1 hour and 60 mph in another hour will mark brainliest

If a balloon is taken outside on a very cold day, what will occur?

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?