exam Maths Puzzle Numerical Ability

A Star emits radiation at 424nm; it would normally emit radiation at 430nm. What is its radial velocity and direction.

Read Solution (Total 0)

exam Other Question

At 10:00 a.m, a car leaves a house at a rate of 60 mi/h. At the same time, another car leaves the same house at a rate of 50 mi/h in the opposite direction. At what time will the cars be 330 miles apart? I need help with this problem Add, using the vertical method.
5x^2+2x-4,x^2-2x-3 and 2x^2-4x-3