Which equation describes the sum of the two vectors plotted below? O A. I = x+ý O B. P = 2x + y O c. r = &- O D. P = -X+3Ý

What is the earliest point in the universe that we can observe? why can’t we see back further than this?

Which of the following is not a physical property of mattera. melting pointb.heat of combustionc. viscosityd. boiling point

Aspaceship starting from a resting position accelerates at a constant rate of 9.8 meters per second per second. how far will the spaceship travel if its final speed is 1 percent the speed of light (300,000,000 m/s)? a. 3.1 × 106 m b. 2.94 × 108 m c. 7.8 × 1010 m d. 4.6 × 1013 m