3 Your car gets 34.7 mi/gal on a vacation trip in the U.S. If you were figuring your mileage in Europe, how many km/L (kilometer

Physics

Unit & Dimensions Solutions

Question 8 of 10 > -71 View Policies Current Attempt in Progress Cars A and B move in the same direction in adjacent lanes. The position x of car A is given in the figure, from time t = 0 tot = 7.0 s. The figure's vertical scaling is set by Xs = 48.0 m. At t = 0, car B is at x = 0, with a velocity of 18.0 m/s and a negative constant acceleration ag. (a) What must ag be such that the cars are (momentarily) side by side (momentarily at the same value of x) at t = 4.0 s? (b) For that value of AB, how many times are the cars side by side? How many times will the cars be side by side if the magnitude of acceleration ag is (c) more than and (d) less than the answer to part (a)? x (m) 0 1 2 3 4 5 6 7 t(s) p 12 A m/s^2 Units (a) Number 0 neki Units i This answer has no units (b) Number

Physics

Unit & Dimensions Solutions

1. A snowboarder starts from rest at the top of a double black diamond hill. As she rides down the slope, GPS coordinates are used to determine her displacement as a function of time: x = 0.50 + 12 + 2t, where x and t are expressed in feet and seconds, respectively. Determine the position, velocity, and acceleration of the boarder when t = 5 seconds.

Physics

Unit & Dimensions Solutions

med Worksheet 1 -Rev 12 Math and Calculator Exercise H. Measurements in Your Daily Life 1. Throughout a typical day, list at least eight numbers (and units) you might use such as measurements, prices, definitions, cooking quantities, gasoline purchases, prescription dosages, etc. Identify each number as exact or measured. Explain your choice. (Did you use a measuring tool, or did you count out something, or use a definition?) (3 points) Number used Type of Number Explanation