What is the speed of the car displayed on the speedometer? (Don't forget the unit)Editויויויה6080mph10040 *100 120 14020-40הויויו.2°-200-8060180200120220-140240-160View Insert Format Tools Table

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Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter1: Introduction And Vectors

Section1.3: Conversion Of Units

Problem 1.2QQ: The distance between two cities is 100 mi. What is the number of kilometers between the two cities?...

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You are spending the summer as an assistant learning how to navigate on a large ship carrying freight across Lake Erie. One day, you and your ship are to travel across the lake a distance of 200 km traveling due north from your origin port to your destination port. Just as you leave your origin port, the navigation electronics go down. The captain continues sailing, claiming he can depend on his years of experience on the water as a guide. The engineers work on the navigation system while the ship continues to sail, and winds and waves push it off course. Eventually, enough of the navigation system comes back up to tell you your location. The system tells you that your current position is 50.0 km north of the origin port and 25.0 km east of the port. The captain is a little embarrassed that his ship is so far off course and barks an order to you to tell him immediately what heading he should set from your current position to the destination port. Give him an appropriate heading angle.
What is the order of magnitude of the time interval required for light to travel 10 km as in Galileos attempt to measure the speed of light? (a) several seconds (b) several milliseconds (c) several microseconds (d) several nanoseconds
One mile is equal to 1,609 m. Express this distance in kilometers and in centimeters.
(a) A car speedometer has a 5.0% uncertainty. What is the range of possible speeds when it reads 90 km/h? (b) Convert this range to miles per hour. (1Km=0.6214)
Show that, when SI units for 0 and 0 are entered, the units given by the right-hand side of the equation in the problem above are m/s.
A surveyor measures the distance across a straight river by the following method: starting directly across from a tree on the opposite bank, he walks x = 1.00 102 m along the riverbank to establish a baseline. Then he sights across to the tree. The angle from his baseline lo the tree is = 35.0 (Fig. P1.53). How wide is the river? Figure P1.53
An average person sneezes about three times per day. Estimate the worldwide number of sneezes happening in a time interval approximately equal to one sneeze.
Simplify the following expression, combining terms as appropriate and combining and canceling units. (See Section 1.5.) (7.00ms2)(1.00km1.00103m)(60.0s1.00min)z=?
Each of the following equations was given by a student during an examination: (a) 12mv2=12mv02+mgh (b) v = v0 + at2 (c) ma = v2. Do a dimensional analysis of each equation and explain why the equation cant be correct.
Check Your Understanding A high school track coach has just purchased a new stopwatch. The stopwatch manual states the stopwatch has an uncertainty of ±0.05 s. Runners on the track coach’s learn regularly clock 100-rn sprints of 11.49 s to 15.01 s. At the school’s last track meet, the first-place sprinter came in at 12.04 s and the second-place sprinter came in a 12.07 s. Will the coach’s new stopwatch be helpful in timing the sprint team? Why or why not?
In Figure P1.49, find (a) the side opposite , (b) the side adjacent to . (c) cos , (d) sin , and (c) tan . Figure P1.49
A yacht is 20 m long. Express this length in feet.

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What is the speed of the car displayed on the speedometer? (Don't forget the unit) Edit ויויויה 60 80 mph 100 40 *100 120 140 20-40 הויויו. 2° -20 0 -80 60 180 200 120 220-140 240- 160 View Insert Format Tools Table