electromagnetic waves of wavelengths 1,34nm are emitted. how much energy do photons of this light have​

How much force must a locomotive exert on a 12840-kg boxcar to make it accelerate forward at 0.490 m/s2?

Describe uniform velocity and variable velocity in short

Find the dimensions and area of the largest rectangle that can be inscribed in the upper half of the ellipse. (give your answers in terms of a and b. enter the dimensions as a comma-separated list.)