Question posted by mom54

mom54 from ITESM Mexico

mom54
Rating : No Rating
Questions Asked: 17
Tutorials Posted: 0

Bounty	Status	Category	Sub-Category	Question	Due
Questions Posted by mom54 1-10 of 17 \| Next
$2.00	Answered, closed	Physics	General Physics	mechanical advantage problem Mary, a 460N playing Peter Pan, is hoisted above the stage in order to by a stagehand with a force of 60N on a rope wrapped around a pulley system. What is the actual mechanical advantage of the...	Mar. 02, 2009
$2.00	Answered, closed	Physics	General Physics	gravitational acceleration problem While on the moon an astronaut enjoyed the effects of gravity. He jumped on the moon with an initial speed of 1.51m/s to a height of o.7m What amount of gravitational acceleration did he experienced?	Mar. 02, 2009
$2.00	Answered, closed	Physics	General Physics	Conservation of energy A 500Kg pig stands at top of muddy hill which is 100m long with a vertical drop of 30m. The pig slides down hill. What is the pig's speed at the bottom of hill? Use law of conervation of energy....	Mar. 02, 2009
$2.00	Answered, closed	Physics	General Physics	speed of tire kathy changes a tire on asteep hill 20m high. She drops the 10 kg spare tire which rolls down hill with nitial speed of 2m/s What is the speed of the tire at the top of hill, which is 5m high? (ignore...	Mar. 02, 2009
$2.00	Answered, closed	Physics	General Physics	How much work done? Bob whose mass is 75Kg, skis down a hill that is inclined at an angle of 15 degrees to the horizontal and has a vertical rise of 25m. How much work is done by gravity on Bob as he goes down the hill?...	Mar. 01, 2009
$2.00	Answered, closed	Physics	General Physics	fulcrum problem A waitress holds a 5N tray stacked with 3.5 dishes in one hand. Length of her hand to elbow 30cm and her biceps exert a force of 5cm from her elbow acting as a folcrum.H much force must her biceps...	Mar. 01, 2009
$3.00	Answered, closed	Physics	General Physics	distance and mechanical advantage Jane 10Kg, Mary 30Kg in a seesaw. jane pushes against the floor to lift Mary, she lifts her from the ground a distance of 0.30 m a)What would be the distance that Jane is able to lifts once Mary has...	Feb. 28, 2009
$3.00	Answered, closed	Physics	General Physics	velocity of motorboat A 300 Kg motorboat is turned off as it approaches a dock and it coasts in toward the dock at 0.50 m/s. Isaac, whose mass is 62.0 Kg, jumps off the front of the boat with a speed of 3.0 m/s relative...	Jan. 14, 2009
$3.00	Answered, closed	Physics	General Physics	Velocity of bullfighter and bull Miguel, the 72.0 Kg bullfighter, runs toward a bull at a speed of 4.00 m/s. The 550 Kg bull charges toward Miguel at 12.0 m/s and Miguel must jump on the bull's back at the last minute to avoid being...	Jan. 14, 2009
$2.00	Answered, closed	Physics	General Physics	parachuter On a jump, a 65 Kg parachuter lands on the beach with a speed of 4.0 m/s, making a 0.20 m deep indentation in the sand. With what average force did the parachuter hit the sand?	Jan. 14, 2009