a thermometer which was not accurately calibrated indicates -0.5°C at the lower fixed point and 106°C at the upper fixed point. what temperature does the thermometer register when the true temperature is 60°C

Let f(x) = x4- 8x2 . find the relativeextrema of this function using the second derivative test.

Electromagnetic induction. a coil of wire contains n turns and has an electrical resistance r. the radius of each turn is a. initially, inside the coil there exists a uniform magnetic field of magnitude b0 parallel to the axis of the coil. the magnetic field is then reduced slowly. the current induced in the coil is i. how long does it take for the magnitude of the uniform field to drop to zero?

If you put a helium-filled balloon in the refrigerator, what will happen?