It takes 63 W to power a ceiling fan. The energy output of the fan is 50 W. Calculate the efficiency of the fan. Round your answer to the nearest percentage. %

Momentum Monster does 600,000 joules of work in 10 seconds. How much power is that in watts? I think it's 60,000, but I need someone who knows for sure whether this is correct or not.

A mass of 5kg accelerates at 3m/s/s, how much force was put on it?

How do you think the speed a satellite fall towards Earth compares to the speed it is moving forward?

2. Vehicle-braking distance is the distance your vehicle travels after you see a problem before you apply the brakes. A. true B. false

What is the momentum of a 0.145 kg softball traveling at 10.0 m/s? A) 0.0145 kg⋅m/s B) 1.45 kg⋅m/s C) 14.5 kg⋅m/s D) 145 kg⋅m/s

A Find the magnitude of the angular momentum of the second hand on a clock about an axis through the center of the clock face. The clock hand has a length of 15.0 cm and a mass of 6.00 g.

A geologist finds ripples preserved in ancient sedimentary rock that look just like ripples made by water in mud. He concludes that there was once water in that location that created the ripples. Why is this conclusion reasonable?

In science what is the requirement of doing work?

What Fitness Gram test is assessing your cardiovascular endurance?

A graph titled Position versus time for with horizontal axis time (seconds) and vertical axis position (meters). A straight blue line runs with an upward slope from 0 seconds 3 meters to 4 seconds 15 meters. The starting position of this object is m.