A certain metal has a resistivity of 1.68 * 10-8 Ω ∙ m. You have a long spool of wire made from this metal. If this wire has a diameter of 0.15 mm, how long should you cut a segment so its resistance will be 15 Ω?

39C On a hot summer day, a student turns his fan on when he leaves his room in the morning. When he returns in the evening, will the room be warmer or cooler than the neighboring rooms? Why? Assume all the doors and windows are kept closed.

At steady state, a refrigerator whose coefficient of performance is 3 removes energy by heat transfer from a freezer compartment at 0 degrees C at the rate of 6000 kJ/hr and discharges energy by heat transfer to the surroundings, which are at 20

What engine does chrysler 300c have?

What causes a roller coaster to move.

Oil with a density of 850 kg/m3 and kinematic viscosity of 0.00062 m2/s is being discharged by an 8-mm-diameter, 42-m-long horizontal pipe from a storage tank open to the atmosphere. The height of the liquid level above the center of the pipe is 4 m.

A cylindrical bar of metal having a diameter of 20.2 mm and a length of 209 mm is deformed elastically in tension with a force of 50500 N. Given that the elastic modulus and Poisson's ratio of the metal are 65.5 GPa and 0.

Which of the following statements regarding piston rings is false? Select one: a. A compression ring prevents pressurized refrigerant from blowing past the piston into the crankcase. b.

In solid rocket motor terminology, a sliver is: A. A basic geometric shape B. Leftover propellant C. A test article for propellant characterization D. A type of igniter

Technician A says a "dry park check" is a good way to check ball joints and control arm bushings for looseness.

Describe the three primary duties for engineer