If a ride at disneyworld goes from rest to 27 m/s in 2.8 seconds and the mass of the ride and riders together 5000kg. What is the average power required to do this? Give your answers in both watts and horsepower

Which one of these are non-contact forces friction gravity normal force pushing force

Lucas puts new batteries in his radio-controlled car and its controller. He activates the controller, which sends a radio signal to the car. The car moves forward. Name at least three energy transformations that occurred.

What is the average velocity of atoms in 1.00 mol argon at 275k? For m use 0.0399 kg

Calculate the density of mercury if 500 cm3 has a mass of 6.60 kg. Give your answer in g/cm?.

A ballplayer standing at home plate hits a baseball that is caught by another player at the same height above the ground from which it was hit. The ball is hit with an initial velocity of 32.1 m/s at an angle of 60.0° above the horizontal.

A thermocouple thermometer is connected to a millivoltmeter which can read up to 10mV. When one junction is in ice at 0°C and the other is steam at 100°C, the millivoltmeter reads 4mV.

A hammer head of mass 600g, produces force of 360N when it strikes the head of a nail Explain how it's possible for the hammer to drive the nail into a piece of wood, yet a weight of360N resting on the head of Nail would not?

A ball is hit straight up with an initial speed of 28 meters per second. What is the speed of the ball 2.2 seconds after it is hit? [Neglect friction.]

What is the approximate pressure of air at sea level? 0 kPa 101 kPa 10 kPa 1000 kPa

The steps in the heating of a metal seat in a park are listed below: Step 1: Heat travels from the sun to Earth Step 2: Heat travels through atmosphere to the top of the seat Step 3: Heat from the top of the seat travels through the seat to the