During a stage production of peter pan, the 50kg actress playing peter has to fly in vertically (descend). to be in time with the music, she must, starting from rest, be lowered distance of 3.2m in 2.2s at a constant acceleration. backstage, a smooth surface sloped at 50 degrees supports a counterweight of mass m. show the calculations that the stage manager must perform to find(a) the mass of the counterweight that must be used and(b) the tension in the wire.

What is the name for the remnant of an asymptotic giant that has lost its shells? black dwarf white dwarf yellow giant black hole

Panel bc in fig. p2.76 is semi-circular, with the 3 meter radius and horizontal straight edge through point b. compute (a) the hydrostatic force of the water on the panel, (b) its center of pressure, and (c) the moment of this force about point b. assume atmospheric pressure on the dry side of the panel

Simon is writing a story about an astronaut whose spacecraft has been boarded by space pirates. the astronaut has her lucky penny in her hand behind her back as the space pirates break into the control room. she has just locked the controls so that the ship is accelerating in the direction of the control room’s ceiling. simon wants the astronaut to use the penny to hit a button on the control panel to turn off the lights and escape. the button is located a short distance behind and below the astronaut’s hands. how should simon use the theory of relativity to describe what the astronaut must do in order to hit the button?