Kepler' of planetary motion states that the planets have an elliptical orbit, with the sun at one focal point of the ellipse. a. 1st law b. 2nd law c. 3rd law

What is the acceleration of a spaceship that is initially at rest and then speeds up to 220 m/s in 20 seconds

What is the electric force acting between two charges of -0.0045 c and -0.0025 c that are 0.0060 m apart? use fe=kq1q2/r^2 and k = 9.00 x 10^9 n*m^2/c^2 a. 1.7 x 10^7 n b. -1.7 x 10^7 n c. -2.8 x 10^9 n d. 2.8 x 10^9 n

Which of the following is an example of motion in two dimensions?