MODIFIED MASTERING COLLEGE PHYSICS 18WK.
4th Edition
ISBN: 9780136782216
Author: Knight
Publisher: PEARSON
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Textbook Question
Chapter 13, Problem 25P
What is the tension in the string in Figure P.13.25?
Figure P13.25
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1.39 Given two vectors A = -2.00 +3.00 +4.00 and
B=3.00 +1.00 -3.00k. (a) find the magnitude of each vector;
(b) use unit vectors to write an expression for the vector difference
A - B; and (c) find the magnitude of the vector difference A - B. Is
this the same as the magnitude of B - Ä? Explain.
5. The radius of a circle is 5.5 cm.
(a) What is the circumference in meters?
(b) What is its area in square meters?
6. Using the generic triangle below, solve the following:
0 = 55 and c = 32 m, solve for a and b.
a = 250 m and b = 180 m, solve for the angle and c.
b=104 cm and c = 65 cm, solve for a and the angle
b
a
7. Consider the figure below representing the Temperature (T in degrees Celsius) as a function of time
t (in seconds)
4
12
20
(a) What is the area under the curve in the figure below?
(b) The area under the graph can be calculated using integrals or derivatives?
(c) During what interval is the derivative of temperature with respect to time equal to zero?
Part 3: Symbolic Algebra
Often problems in science and engineering are done with variables only. Don't let the different letters
confuse you. Manipulate them algebraically as though they were numbers.
1. Solve 3x-7= x + 3 for x
2x-1
2. Solve-
for x
2+2
In questions 3-11 solve for the required symbol/letter
3. v2 +2a(s-80), a =
=
4. B=
Ho I
2π r
5. K = kz²
6.xm=
MAL
,d=
d
7.T, 2
=
8.F=Gm
9. mgh=mv²
10.qV = mu²
80
12. Suppose that the height in meters of a thrown ball after t seconds is given by h =6+4t-t².
Complete the square to find the highest point and the time when this happens.
13. Solve by completing the square c₁t² + cat + 3 = 0.
14. Solve for the time t in the following expression = 0 + vot+at²
Chapter 13 Solutions
MODIFIED MASTERING COLLEGE PHYSICS 18WK.
Ch. 13 - Which has the greater density, 1 g of mercury or...Ch. 13 - Prob. 2CQCh. 13 - Prob. 3CQCh. 13 - Prob. 4CQCh. 13 - Prob. 5CQCh. 13 - Prob. 6CQCh. 13 - Prob. 7CQCh. 13 - Prob. 8CQCh. 13 - Prob. 9CQCh. 13 - A steel cylinder at sea level contains air at a...
Ch. 13 - Prob. 11CQCh. 13 - Imagine a square column of the atmosphere, 1 m on...Ch. 13 - Prob. 13CQCh. 13 - Prob. 14CQCh. 13 - A beaker of water rests on a scale. A metal ball...Ch. 13 - Prob. 16CQCh. 13 - Prob. 17CQCh. 13 - Prob. 18CQCh. 13 - A heavy lead block and a light aluminum block of...Ch. 13 - When you place an egg in water, it sinks. If you...Ch. 13 - The water of the Dead Sea is extremely salty,...Ch. 13 - Fish can adjust their buoyancy with an organ...Ch. 13 - Prob. 23CQCh. 13 - Prob. 24CQCh. 13 - Prob. 25CQCh. 13 - Prob. 27CQCh. 13 - Prob. 28CQCh. 13 - Is it possible for a fluid in a tube to flow in...Ch. 13 - Prob. 31CQCh. 13 - Prob. 32MCQCh. 13 - Figure Q.13.33 shows a 100 g block of copper ( =...Ch. 13 - Masses A and B rest on very light pistons that...Ch. 13 - Prob. 35MCQCh. 13 - Prob. 36MCQCh. 13 - A large beaker of water is filled to its rim with...Ch. 13 - Prob. 38MCQCh. 13 - Prob. 40MCQCh. 13 - An object floats in water, with 75% of its volume...Ch. 13 - Prob. 42MCQCh. 13 - Water flows through a 4.0-cm-diameter horizontal...Ch. 13 - A 15-m-long garden hose has an inner diameter of...Ch. 13 - Prob. 1PCh. 13 - Prob. 2PCh. 13 - A standard gold bar stored at Fort Knox, Kentucky,...Ch. 13 - Prob. 4PCh. 13 - Prob. 5PCh. 13 - Prob. 6PCh. 13 - Prob. 7PCh. 13 - Prob. 8PCh. 13 - A tall cylinder contains 25 cm of water. Oil is...Ch. 13 - A 35-cm-tall, 5.0-cm-diameter cylindrical beaker...Ch. 13 - The gauge pressure at the bottom of a cylinder of...Ch. 13 - Prob. 12PCh. 13 - A research submarine has a 20-cm-diameter window...Ch. 13 - The highest that George can suck water up a very...Ch. 13 - Prob. 15PCh. 13 - Prob. 16PCh. 13 - Prob. 17PCh. 13 - Glycerin is poured into an open U-shaped tube...Ch. 13 - A U-shaped tube, open to the air on both ends,...Ch. 13 - What is the height of a water barometer at...Ch. 13 - A cargo barge is loaded in a saltwater harbor for...Ch. 13 - Prob. 22PCh. 13 - A 10 cm 10 cm 10 cm wood block with a density of...Ch. 13 - What is the tension in the string in Figure...Ch. 13 - What is the tension in the string in Figure...Ch. 13 - To determine an athletes body fat, she is weighed...Ch. 13 - Prob. 28PCh. 13 - Styrofoam has a density of 32 kg/m3. What is the...Ch. 13 - Prob. 30PCh. 13 - Calculate the buoyant force due to the surrounding...Ch. 13 - Prob. 32PCh. 13 - Water flowing through a 2.0-cm-diameter pipe can...Ch. 13 - Prob. 34PCh. 13 - Prob. 35PCh. 13 - Prob. 37PCh. 13 - Prob. 39PCh. 13 - Prob. 40PCh. 13 - What pressure difference is required between the...Ch. 13 - Prob. 42PCh. 13 - Water flows at 0.25 L/s through a 10-m-long garden...Ch. 13 - Prob. 44PCh. 13 - Prob. 45PCh. 13 - Prob. 47PCh. 13 - Prob. 48PCh. 13 - Prob. 49PCh. 13 - Prob. 50PCh. 13 - As discussed in Section 13.3, a persons percentage...Ch. 13 - The density of aluminum is 2700 kg/m3. How many...Ch. 13 - An oil layer floats on 85 cm of water in a tank....Ch. 13 - Prob. 55GPCh. 13 - Prob. 56GPCh. 13 - A sphere completely submerged in water is tethered...Ch. 13 - Prob. 58GPCh. 13 - A 5.0 kg rock whose density is 4800 kg/m3 is...Ch. 13 - A flat slab of styrofoam, with a density of 32...Ch. 13 - A 2.0 mL syringe has an inner diameter of 6.0 mm,...Ch. 13 - Prob. 62GPCh. 13 - The leaves of a tree lose water to the atmosphere...Ch. 13 - II A hurricane wind blows across a 6.00 m 5.0 m...Ch. 13 - Prob. 65GPCh. 13 - Prob. 66GPCh. 13 - Prob. 67GPCh. 13 - Prob. 68GPCh. 13 - Prob. 69GPCh. 13 - Smoking tobacco is bad for your circulatory...Ch. 13 - A stiff, 10-cm-long tube with an inner diameter of...Ch. 13 - Suppose that in response to some stimulus a small...Ch. 13 - Prob. 73MSPPCh. 13 - Prob. 75MSPP
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