A3: You are driving your out at a speed of 33.0 m/s down a highway on the way to the beach. (n) What is this speed in kilometers per minute? (b) Are you exceeding the posted 70 mile per hour (mph) speed limit? Show your work. (c) How many seconds will it take to travel 3 miles at this rate? Ad: The speed of light c is 3.00 x 10 meters per second (m/s). (a) What is this speed expressed in units of inches per nanosecond? (b) If Sunlight takes 8.33 minutes to travel to Earth, how far away is the Sun in kilometers? (c) The Moon is roughly 239,000 miles from Earth. How long does it take sunlight to travel from the Moon's surface to the Earth? A5: You are going on a road trip with friends in a car that can travel 48 kilometers per gallon. (a) How many gallons of gas will it take you to travel 1230 miles from GR to Orlando? |22.05 (b) If gas costs an average of $2.96 per gallon during your trip, what is the total cost of gas for the cross-country trip over and back? 24 4 \\ no A6: American physical chemist Gilbert Newton Lewis proposed a unit of time called the "jiffy." According to Lewis, 1 jiffy = the time it takes light to travel 1 centimeter (The speed of light is c = 3.00 x 105 m/s). (a) If you perform a task in a jiffy, how long is that in seconds? (b) How many jiffys are in 3 minutes? A7: You are in France on vacation. The exchange rate is 1 Euro = 1.22 U.S_dollars. You find a cab that will take you 1 kilometer for 0.58 Euros. Find the distance in miles that you could travel with this cab for twenty dollars. A8: Using the conversions on the front of this sheet, convert a flow rate of 3 gallons per minute into cubic feet per hour and then also into cubic meters per second units. 49: For the 4 paths/trips shown in the diagram, identify the (a) distance traveled and displacement made along path A 3 5 (b) distance traveled and displacement made along path B D : (c) distance traveled and displacement made along path C 0 2 4 6 8 10 12 location x (m) (d) distance traveled and displacement made along path D A10: Given the motion graph shown, determine the graph for problem following: 8 A10 a) Find the object's displacement from 0 to 5 s. b) Find the object's displacement from 3 to 8 s. location (c) What distance did the object travel from 0 to 6 seconds? (meters) (d) Find the average velocity for the time interval 2 from 2 to 6 seconds. 1 23 4 5 6 7 (e) Find the average speed from 0 to 8 seconds. time in seconds 2