Arhinoceros is at the origin of coordinates at time t1 = 0. for the time interval from t1 = 0 to t2 = 21.5 s, the rhino's average velocity has x-component -3.8 m/s and y-component 4.5 m/s. (a) at time t2 = 21.5 s, what are the x and y coordinates of the rhino? (b) how far is the rhino from the origin? ans: - -81.7 m, 96.8 m. 127m,

Apulley with a mechanical advantage of 5 will require you to pull times the amount of rope. a. 1/5 b. 5 c. 10 d. 15

In which situation has the independent variable for the experiment been changed? check all that apply. changed from counting the number of duckweed at day 0 and day 14 to counting them every day changed from testing duckweed growth in beakers to testing duckweed growth in large outdoor tanks changed from testing the effect of ph on duckweed growth to testing the effect of light levels on duckweed growth changed from testing the effect of acid ph on duckweed growth to testing the effect of basic ph on duckweed growth

When a light bulb shines, it gives off light energy and energy. a. heat b. potential c. chemical d. electrical