Juan (mass 80.4 kg) can do work for about 1.5 minutes at the rate of 1 hp (746 W). How long will it take him to climb 3 flights of stairs, a vertical height of 12 m?

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

A2k pendulum has a speed of 1 m/s at a height of 1/2 meter

While standing outdoors one evening, you are exposed to the following four types of electromagnetic radiation: yellow light from a sodium street lamp, radio waves from an am radio station, radio waves from an fm radio station, and microwaves from an antenna of a communications system. rank these type of waves in terms of increasing photon energy.