Physics, 04.02.2020 00:07 vandonquisenberry
Jack tries to place magnets on his refrigerator at home, but they won’t stick. what could be the reason?
a) the body of the refrigerator isn’t made of magnetic material.
b) earth’s magnetic field is interfering.
c) the magnet and the body of the refrigerator have like poles.
d) the refrigerator isn’t plugged into an electrical outlet.
Answers: 3
Physics, 22.06.2019 16:50
Consider the growth of a 20-nm-diameter silicon nanowire onto a silicon wafer. the temperature of the wafer surface is maintained at 2400 k. assume the thermal conductivity of the silicon nanowire is 20 wm-1k-1 and all its surfaces including the tip are subjected to convection heat transfer with the coefficient h = 1×105 wm-2k-1 and t∞ = 8000 k. when the nanowire grows to l = 300 nm, what is the temperature of the nanowire tip (t (x =
Answers: 1
Physics, 23.06.2019 02:00
Consider an air-filled charged capacitor. how can its capacitance be increased?
Answers: 2
Physics, 23.06.2019 02:30
If frequency goes up, what happens to wavelength? does it get shorter or longer?
Answers: 2
Physics, 23.06.2019 03:30
Which statement is true? a) the work done to lift an object 6 meters is greater than the gravitational potential energy it gains. b) the work required to push an object is less than the work required to pull an object the same distance. c) the work required to raise an object to a height is equal to the gravitational potential energy the object gains. d) the work done against gravity to lift an object straight up is greater than the work required to roll it up a ramp.
Answers: 1
Jack tries to place magnets on his refrigerator at home, but they won’t stick. what could be the rea...
Chemistry, 21.01.2020 22:31
History, 21.01.2020 22:31