The efficiency of a knife is 75 if you push down on the
The efficiency of a knife is 75%. If you push down on the knife with a force of 5 N to cut a piece of cake that is 6 cm thick, how much work is done on the cake?
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A 5.645-g sample of a mixture of Fe and Al is treated with excess HCl(aq). If 0.2122 moles of H2 are obtained, then what is the percentage by mass of Fe in the original mixture? Give your answer accurate to three significant figures.
A charge of -16 x 10 ^-6 C , Q1, is fixed on x axis at 4 m and a charge of + 9x 10^-6, Q2, is fixed at +3 m on y axis Show E1 and E2 vector due to each charge, Calculate electric potential V at origin
An npn transistor of a type whose P is specified to range from 60 to 300 is connected in a circuit with emitter grounded, collector at +9 V, and a current of 50 pA injected into the base.
Does replacing copper nitrate solution with copper chloride solution effect anything? if so, what and why?
The efficiency of a knife is 75%. If you push down on the knife with a force of 5 N to cut a piece of cake that is 6 cm thick, how much work is done on the cake
Two transistors, fabricated with the same technology but having different junction areas, when operated at a base-emitter voltage of 0.72 V, have collector currents of 0.2 mA and 12 mA. Find Is for each device.
On a certain planet, a 10 kg rock has a gravitational potential energy of 1,056 J when it is resting on a cliff 12 m above the surface
Calculate the partial pressure of each gas if the composition of the air is: a) 21% oxygen, 78% nitrogen, .3% carbon dioxide
Determine the transfer function and difference equation of the designed FIR system, and compute and plot the magnitude frequency response for Omega=0, Pi/4, Pi/2, 3 Pi/4, and Pi radians.
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