Mary is a 520 N actress who is playing a flying butterfly. She is attached to a pulley system that hoists her into the air. The stagehand pulls with 80 N of force.

A. What is the mechanical advantage of this pulley system?

B. If Mary was lifted 7 meters above the stage, how far does the stagehand have to pull the rope?

Current 1 of 8.4 a runs for 240 seconds and then stops. current 2 is 10.5 a. how long does current 2 have to un to deliver the same amount of charge as current 1? 88.28 192 s 2016 s 21,000 s

What type of light does this light bulb produce most (i.e. at what wavelength does the spectrum have maximum intensity)?

(01.02 mc) nicole pushes her bike up a hill. overhead, the sun exerts a gravitational force on earth. which statement is true about the bike and earth? they both experience contact forces. they both experience non-contact forces. the bike experiences a non-contact force and earth experiences a contact force. the bike experiences a contact force and earth experiences a non-contact force. they both experience non-contact forces.