An object with a mass of 5 kg is traveling ata velocity of 20 m/s. How much kinetic energy does it have?

Answer: it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.explanation:   we have equation of motion ,where s is the displacement, a is the acceleration, u is the initial velocity and t is the time taken.average velocity = displacement/ time taken.average velocity = 10.69 miles/hr = 10.69*1.6*1000/(60*60) = 4.75 m/s4.75 = s/ts = 4. 1we also have acceleration = 2.18 m/s², initial velocity = 0 m/sso it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.

You will hear a hissing sound because of the carbon dioxide escaping the can or bottle

The particles of the gas inside the ball heats up, bouncing off each other and spreading farther apart.hope my answer has you : )