What is the efficiency of a machine that miraculously converts all the input energy to useful output energy?

What is 34 degrees farenheit in celsius? What is 34 degrees farenheit in celsius? Follow Report Abuse Are you sure you want to delete this answer? Yes No

use the formula P=IV to detine how much current is a 120-watt light bulb is connected to a 120-V outlet

How is eldctrochemical energy produced

1500 kg car increases its speed by 2 m/s for each second of travel. What is the net force acting on the car?

Which statement best describes why an island food web could be considered a closed system? A) Energy flows freely into and out of the island food web. B) Energy enters and exits the system, matter does not.

What is the weight of a 65 kg astronaut on mars?

When lava cools, what type of Rock forms?

A uniformly charged conducting sphere of 1.1 m diameter has a surface charge density of 6.2 µC/m2. (a) Find the net charge on the sphere. (b) What is the total electric flux leaving the surface of the sphere?

A blow-dryer and a vacuum cleaner each operate with a voltage of 120 V. The current rating of the blow-dryer is 12 A, while that of the vacuum cleaner is 5.7 A. Determine the power consumed by (a) the blow-dryer and (b) the vacuum cleaner.

4. A 40 kg child and a 30 kg child want to balance themselves on a 4 meter, 50 kilogramn see-saw. Where should the fulcrum be placed?