hat number w.ww The word "units" refers to the corresponding quantity of something. For example, 2 is a number; 2 seconds is a physical quantity that has the units of second. In physics problems, are usually not looking for a number; we are looking for a need to also know the units. If you do not include units with the answer, you will not receive physical quantity, which means we full credit. Physicists are very nitpicky about this! 8. You may have learned the formula distance speed x time. How long would it take in seconds to travel a distance of 2000 meters if you are traveling at a speed of 25 meters per second? (note: your answer must include the word "seconds" or the abbreviation "s" after your number...remember your units! \Sxt t1475 2000 25tt 2000 -25t 1975-t 9. How long would it take in minutes to travel a distance of 2000 meters if you are traveling at a speed of 50 meters per second? S X t e1950 2o00 Sot 2000-50-t 1950 10. How far does sound travel in 1 minute? Put your answer in proper scientific notation. 2

hat number w.ww The word "units" refers to the corresponding quantity of something. For example, 2 is a number; 2 seconds is a physical quantity that has the units of second. In physics problems, are usually not looking for a number; we are looking for a need to also know the units. If you do not include units with the answer, you will not receive physical quantity, which means we full credit. Physicists are very nitpicky about this! 8. You may have learned the formula distance speed x time. How long would it take in seconds to travel a distance of 2000 meters if you are traveling at a speed of 25 meters per second? (note: your answer must include the word "seconds" or the abbreviation "s" after your number...remember your units! \Sxt t1475 2000 25tt 2000 -25t 1975-t 9. How long would it take in minutes to travel a distance of 2000 meters if you are traveling at a speed of 50 meters per second? S X t e1950 2o00 Sot 2000-50-t 1950 10. How far does sound travel in 1 minute? Put your answer in proper scientific notation. 2

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Still think that unit conversion isn't important? Here is a widely publicized, true story about how failing to convert units resulted in a huge loss. In 1998, the Mars Climate Orbiter probe crashed into the surface of Mars, instead of entering orbit. The resulting inguiry revealed that NASA navigators had been making minor course corrections in SI units, whereas the software written by the probe's makers implicitly used British units. In the United States, most scientists use Sl units, whereas most engineers use the British, or Imperial, system of units. (Interestingly, British units are not used in Britain.) For these two groups to be able to communicate to one another, unit conversions are necessary. The unit of force in the SI system is the newton (N), which is defined in terms of basic Sl units as 1 N=1 kg · m/s?. The unit of force in the British system is the pound (lb), which is defined in terms of the slug (British unit of mass), foot (ft), and second (s) as 1 lb =1 slug ·…
3. Perform the following mathematical operations, expressing the answers to the correct number of significant digits. a. 463.66 + 29.2 + 0.17 b. 426.66 - 39.2 c. (2.6)(42.2) d. (65) (0.041)(325) 650 e. (0.0060)(26) (55.1) i. 3.52 0.452 9. 0.012 (5.21)(0.45) h. 0.0060 j. V4.9
A jet airplane reaches 812./kmh on a certain flight. What distance does it cover in 5.0min? Set the math up. But don't do any of it. Just leave your answer as a math expression. Also, be sure your answer includes all the correct unit symbols. distance=
You live 5.7 miles from school. How many meters away from school do you live? Hint - You must convert miles to feet then feet to meters.
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You are making a sculpture that is a pyramid with a square base . You want the height of the pyramid to be 4 inches less than the length of a side of the base . You want the volume of the sculpture to be 200 cubic inches . a . Let x represent the length ( in inches ) of a side of the sculpture's base . Draw a diagram of the sculpture , and label the dimensions in terms of x . b . Write a function that gives the volume V of the sculpture in terms of x .
Please fill out the template with the work for this problem. Note that you need to have a picture, list of knowns and unknowns, the general equation/s you will use, the math steps to solve for the unknown, only plug in the numbers after you have solved for the unknown, and the answer with units included. _________________________________________________________________________________ A solenoid is producing a magnetic field of B = 8.5 x 10-3 T. It has N = 1300 turns uniformly over a length of d = 0.25 m. Calculate the numerical value of I in amps that the solenoid must have to produce this field.
A. Solve the problems below. You are required to show the proper solution with the final answer written inside a box. Make sure to put the final unit of measurement.
Name METRIC CONVERSIONS Hour Sometimes you need to change meters to centimeters, or kilometers to meters. Here is an easy way to do that: Here are the metric units of length written from largest to smallest. km hm dam m dm cm EXAMPLE: To convert meters (m) to millimeters (mm) you start at m and move to the right. Count the number of jumps you make to get to mm. 1 jump 2 jumps 3 jumps km hm dam m dm cm mm Since you moved 3 jumps to the right, move the decimal point 3 places to the right. (If you run out of numbers, add a zero for each jump you make after the last number.) 2.05 = 2050 2.05m = 2050mm 123 Problems: Fill in each blank for the problems below. 1. 410 cm = 3. 5. 7. 9. 11. 13. 15. 17. 19. 35 ml = 12 km = 3.4 kg = 157m= 13.5 mm = .69 km = 2500 ml = 27 mg= .135 km = mm g L km g cm cm mm L m mm 2. 4. 6. 8. 10. 12. 14. 16. 18. 20. 16700 m 455 L= .00005 km = 3.57 cm = 157 kg = 15.2 km = 1m= 1000 m .09 cm 107 m = 1 of 1 mm ml m m g cm cm km km Dimensional Analysis review 1. How many…