A skater on Ottawa’s Rideau Canal travels in a straight line 8.5 x 102 m [25° N of E] and then 5.6 x 102 m in a straight line [21° E of N]. The entire motion takes 4.2 min. (a) What is the skater’s displacement?

(b) What are the skater’s average speed and average velocity?

Why is the energy that results from a roller coaster's position at the top of a hill referred to as potential energy?

If a negatively charged particle is placed at rest in an electric potential field that increases in the positive x-direction, what will the particle do? a. accelerate in the positive x-direction b. remain at rest c. accelerate in the negative x-direction

*30 points + brainliest answer* gravity is pulling an object into the sun. the closer the object gets to the sun, the greater the gravitational force that acts on the object, increasing its acceleration. a line graph plotting the speed of the object against time would have which shape? a: straight line of positive slope b: curved line that slopes upward c: curved line that slopes downward d: straight line of negative slope