A 3kg rock is dropped from a height of 15 meters. What is the velocity when it hits the ground? Use 10 for gravity. Unit in m/s (round to nearest hundreth).

Write a full page that sumerizes thermodynamics it’s from the website visionlearnig

The cheetah is considered the fastest running animal in the world. cheetahs can accelerate to a speed of 20.1 m/s in 2.50 s and can continue to accelerate to reach a top speed of 28.1 m/s. assume the acceleration is constant until the top speed is reached and is zero thereafter.1) starting from a crouched position, how long does it take a cheetah to reach its top speed? (express your answer to three significant figures.) s2) how far does it travel in that time? (express your answer to three significant figures.) m3) if a cheetah sees a rabbit 120 m away, how long will it take to reach the rabbit, assuming the rabbit does not move? (express your answer to three significant figures.)

What is the volume of 2400kg of gasoline (petrol) if the density of petrol is 0.7g/km3