Physics, 04.08.2021 20:40 daemonacoster

Calculate the ideal mechanical advantageof a screwdriver that is used to open a paint can. The input arm is 18 cm and the output arm is .75 cm. Show your work.

Answers: 3

Show answers

Another question on Physics

Physics, 22.06.2019 20:50

The second largest public utility in the nation is the sole provider of electricity in 32 counties of southern florida. to meet the monthly demand for electricity in these counties, which is given by the inverse demand function p = 1,200 – 4q, the utility company has set up two electric generating facilities: q1 kilowatts are produced at facility 1, and q2 kilowatts are produced at facility 2 (so q = q1 + q2). the costs of producing electricity at each facility are given by c1(q1) = 8,000 + 6q12 and c2(q2) = 6,000 + 3q22, respectively. determine the profit-maximizing amounts of electricity to produce at the two facilities, the optimal price, and the utility company’s profit

Answers: 3

Answer

Physics, 23.06.2019 00:40

Asteel tube (k=50 w/mk) of inner and outer diameter di = 20mm and do=26mm, respectively, is used to transfer heat from hot gases flowing over the tube (h-hot = 200w/m2k) to cold water flowing through the tube (h-cold = 8000 w/m2k). what is the cold-side overall heat transfer coefficient uc? to enhance heat transfer 16 straight fins of rectangular profile are installed longitudinally along the outer surface of the tube. the fins are equally spaced around the circumference of the tube, each having a thickness of 2mm and a length of 15mm. what is the corresponding overall heat transfer coefficient uc? *solve for uc in both cases*

Answers: 1

Answer

Physics, 23.06.2019 01:00

During the apollo moon missions, astronauts were concerned about the effects of newton's third law of motion when: o a. they ejected waste water, because they were concerned that it would push them off course. o b. they reentered earth's atmosphere, because they were carrying heavy moon rocks. o c. they took off from earth, because a large force was required to generate large acceleration. o d. they detected incoming space debris, because the inertia of the debris could damage their ship.

Answers: 3

Answer

Physics, 23.06.2019 03:50

Asimple electrochemical cell contains two electrodes? t or f

Answers: 2

Answer

You know the right answer?

Calculate the ideal mechanical advantageof a screwdriver that is used to open a paint can. The input...

Questions