The following measurements of current and potential difference were made on a resistor constructed of nichrome wire, where Vab is the potential difference across the wire and I is the current through it: I(A) 0.50 1.00 2.00 4.00
Vab(V) 1.94 3.88 7.76 15.52
(a) Graph Vab as a function of I.(b) Does Nichrome obey Ohm's law? How can you tell?(c) What is the resistance of the resistor in ohms?

Astronomers discover an exoplanet (a planet of a star other than the sun) that has an orbital period of 3.87 earth years in its circular orbit around its sun, which is a star with a measured mass of 3.59 x 1030 kg. find the radius of the exoplanet's orbit.

Agas contained within a piston-cylinder assembly undergoes three processes in series: process 12: compression with pv= constant from 1 bar and 1 liter to 4 bar. process 23: constant pressure expansion to 1 liter. process 31: constant volume calculate the pressure and volume at each state, and sketch the processes on a p-vdiagram labeled with pressure and volume values at each numbered stat

Eddy whose mass is 55kg climbs up the 1.50 meter high stairs in 2s. calculate eddy’s power rating