Question

a heating wire in heater is cut into two halves and connected in parallel. what is the new heat that will be produced??​

Answer 1

In a leber, the fulcrum is at one end of the level rod of lenght 80 cm and the load is at the orher end . An effort of 30N is exerted at a distanece of 20 cm from the fulcrum. calcution the following .

• the length of the load arm.
• the lenght of the effort arm.
• the mechanical advantage of the lever.

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