Isaac Newton
LINKS TO THE ISSUE OF STATIC:
For a game of we did in lab, but Virtual
principle of the lever
http://www.walter-fendt.de/ph14s/lever_s.htm
For games with pulleys :
http://www.walter-fendt.de/ph14s/pulleysystem_s.htm
TROUBLE
levers and pulleys
1) In a second lever gender applies a driving force of 12 Kp. If this is an arm of 2m., Calculate the resistance arm, if it is worth 15 Kp. (R = 1.6 m)
2) A third lever gender has a length of 0.5 m. If the resistance is 300 N, calculate the arm of force if this goes 600N. (R = 0.25 m).
3) There is a first-class lever of 24m in length. If the load resistance is 100 N and the driving force is 300 N, calculate the arms of P and R. {Cu is "the mechanical advantage? (R = 18m, 6m. VM = 1 / 3)
4) A truck loaded with 100 N of weight. Calculate: a) Force exerted by the ground on the wheel, b) Force to support it. (R = 75 N and 25 N).
5) A second-class lever has a 30 cm. fulcrum, a resistance of 100 N. How long should the lever if the driving force that establishes the balance is 64 N?. (R = 46.87 cm).
6) There is a truck loaded with 1.500N weight. Calculate the driving force and the force exerted by the ground on the wheel, knowing that the distance from the wheel the weight is 3 √ ay the distance of the weight force is 6 ยช / √ a. What is mechanical advantage? (R: N = 1000N, P = 500N, VM = 3)
7) An elevator pulley consists of a fixed and mobile. Is the maximum weight of lift is 5.000N. Calculate the driving force must be exerted to lift, if you carry 600N 8 people each. (R: 4900 N.)
8) What force must be exerted to lift a weight of 4500N. with a block consisting of 2 fixed and 2 mobile pulleys. Make the diagram.
VIDEOS DE FISICA
GALILEO ASTRONOMO
CALOR
ELECTROSTATICA- EXPERIMENTO
HISTORY OF ELECTRICITY
Electroscope
TYPES OF ENERGY
History 2
electricity 
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