What is the magnitude of the electric field strength at a position that is 1.2 m from a point charge of 4.2 x10^-6 C

Which quantities are scalars? choose all that apply a.distance b.speed c. acceleration d.velocity

Africtionless piston-cylinder contains 50 l of saturated liquid r-134a. the piston has a mass and an area resulting in an applied pressure of 500 kpa on the refrigerant. the refrigerant is now heated until its temperature rises to 70∘c. calculate the work (in kj) done during this process.

Rohit is trying to tune an instrument