A 3-kg mass is in free fall. What is the velocity of the mass after 7 seconds?

How fast must a 3.0 kg object be traveling to have the same momentum as a 500 kg object traveling at 2.5 m/s?

A duck is floating on a lake with 25% of its volume beneath the water. what is the average density of the duck?

Identify whether the following statements describe a change in acceleration. Explain your response.

Select all that apply. Which of the following statements are true? A solid can diffuse into a liquid, but a solid cannot diffuse into another solid. A solid can diffuse into both a liquid and another solid. Aliquld can diffuse into another liquid.

Light and heat energy travel through space at a speed of A. 186,000 feet per second b. 186,000 miles per second C. 186,000 miles per minute D. 1860 miles per hour

By applying a force of 50N, a pulley system can lift a box with a mass of 20 kg. What is the mechanical advantage of the pulley system?

Three capacitors C1 = 10.1 µF, C2 = 23.0 µF, and C3 = 29.4 µF are connected in series. To avoid breakdown of the capacitors, the maximum potential difference to which any of them can be individually charged is 125 V.

What is the net force in the x-direction? 30 N 34 N 55 N 65 N

If an object does not have domains, will it be possible to make it magnetic?

If the loop is then converted into a rectangular loop measuring 2.1cm on its shortest side in 6.50ms, and the average emf induced across the loop is 14.7V during this time period, what is A. the strength of the B-field