Hea Big Question 14 If vector A = (2i + 2j) m and vector B = (-4i+ 3j) m. What is the magnitude and the direction of A+B? ​

If a clock aboard a space ship traveling at 0.900 c of the speed of light relative to earth chimes once at the beginning of the hour and again when it reads one hour later, how much time would an observer on earth say elapsed between the two chimes?

A100 kg running back runs at 5m/s into a stationary linebacker. it takes 0.5 for the running back to be completely stopped

What can you increase the strength of an electromagnet by