College Physics (10th Edition)
10th Edition
ISBN: 9780321902788
Author: Hugh D. Young, Philip W. Adams, Raymond Joseph Chastain
Publisher: PEARSON
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Textbook Question
Chapter 0, Problem 27P
Simplify the expression.
- a. 4 log x + log y - 3 log (x + y)
- b. log(xy + x2) – log(xz + yz) + 2 log z
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10.4.77
Two forces of magnitude 40 newtons (N) and 20 N act on an object at
angles of 30° and -45° with the positive x-axis as shown in the figure.
Find the direction and magnitude of the resultant force; that is, find
F1 +F2-
F|-4
= 40 N
30°
- 45
I|Fl = 20 N
F1 +F2 = (48.78) i+ (5.86) j
(Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression.)
1. If you used only a keyboard to enter data, how many years would it take to fill up the hard drive in a computer that can store 1.0 terabytes of data? Assume 40-hour work weeks, and that you can type 180 characters per minute, and that one byte is one keyboard character.
2. A.) Find the scalar dot product and the angle between the vectors B.) Find the Vector cross product of AxB
A = 2.00i + 3.00j + 1.00k
B = -4.00i + 2.00j – 1.00k
Evaluate the dot product A - Bif A = 2i +7j and B = 7i – 5j.
?
A-B=
Submit
Request Answer
Part B
Evaluate the dot product A - Bif à = 2î – 7j and B = 5i +7j.
Chapter 0 Solutions
College Physics (10th Edition)
Ch. 0 - Use the exponent rules to simplify the following...Ch. 0 - Use the exponent rules to simplify the following...Ch. 0 - Use the exponent rules to simplify the following...Ch. 0 - Use the exponent rules to simplify the following...Ch. 0 - Express the following expressions in scientific...Ch. 0 - Express the following expressions in scientific...Ch. 0 - Express the following expressions in scientific...Ch. 0 - Express the following expressions in scientific...Ch. 0 - Solve the following equations using any method: 9....Ch. 0 - Solve the following equations using any method:...
Ch. 0 - Solve the following equations using any method:...Ch. 0 - Solve the following equations using any method:...Ch. 0 - Solve the following equations using any method: x2...Ch. 0 - Solve the following equations using any method:...Ch. 0 - Solve the following equations using any method:...Ch. 0 - Solve the following equations using any method:...Ch. 0 - Solve the following equations using any method:...Ch. 0 - If x is proportional to y and x = 2 when y = 10....Ch. 0 - The gravitational force F on an object is directly...Ch. 0 - According to the ideal-gas law (Section 15.2). the...Ch. 0 - For a sound coming from a point source, the...Ch. 0 - If an object is moving at a constant speed v. then...Ch. 0 - The force of gravity on an object (which we...Ch. 0 - The data in Table 0.5 are expected to obey the...Ch. 0 - You are trying to determine whether a produce...Ch. 0 - Use the properties of logarithms and write each...Ch. 0 - Simplify the expression. a. 4 log x + log y - 3...Ch. 0 - Use the logarithmic properties to find the value....Ch. 0 - Use the logarithmic properties to find the value....Ch. 0 - Use the logarithmic properties to find the value....Ch. 0 - (a) Compute the circumference and area of a circle...Ch. 0 - A right triangle has a hypotenuse of length 20 cm...Ch. 0 - In a stairway, each step is set back 30 cm from...Ch. 0 - A ladder is leaning against a building. The ladder...Ch. 0 - A right triangle has a height of 1 m and a base of...
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- A popular unit of measure in the ancient world was the cubit (approximately the distance between a persons elbow and the end of the middle finger, when outstretched). Estimate the length of 1 cubit in centimeters. Given that there are about 1.609 103 m in 1 mile, how many cubits are there in 1 mile?arrow_forwardEvaluate the dot product A - Bif Ä = 8i – 7j and B = -8i – 5j. ? Ä- B = Submit Request Answer Part B Evaluate the dot product Ä · B it Ä = -8i +8j and B = 5i + 7j. ? A ·B =arrow_forwardC L You are tasked with specifying the following structure. It is a cylinder attached to a sphere at one end. Unfortunately, you were not given all the dimensions. You know that the radius of the cylinder is one half (1/2) the radius of the sphere. What is the total volume of the structure as a function of the radius and length of the cylinder (you may neglect any excess volume at the join between sphere and cylinder). O a. V = πr²h+32r²/3 O b. V = r²(h+32r/3) O c. V = r²(th+32r/3) O d. V = r²(h+32/3)arrow_forward
- Problem 1: Let A = î - 2ĵ and B = 2î + ĵ. Compute A.B. Problem 2: Let A = î - 2ĵ and B = 2î + ĵ. Compute A. (A + B). 1 Problem 3: Using the dot product, compute the angle between vectors C and D. C = 2î + 3ĵ D = 3î - 5ĵarrow_forward1%A9 li. t LTET 4G+ Vol) O A X O U 9:-7 Second H.W.pdf 1. Draw and label the vector with these components. Then determine the magnitude and angle of the vector. a- Az = 3 ,A, = -2 b- B, = -2 ,B, = 2 2. What is the speed of horse in meter per second that runs a distance of 1.2 miles in 2.4 minutes? 3. A car moving along X- axis according on the function: X (t) = 2 t2 + 5t +7 on [1,2] Find: a- The average velocity. b- The acceleration at 3s. 4. Julie is walking around a track at a 2m/s for some exercise. She then decides to start jogging so she accelerates at a rate of 0.5m/s? for 3 seconds. How far did Julie travel from the time she started to accelerate to the end of the 3 seconds? 5. Ralph uses a 2000 to do this. force to push his car along a road for 1000 m. It takes him500 s a- Calculate the amount of work that Ralph did on the car. b- Calculate the amount of power that he generated. IIarrow_forwardIf A = 8.0 i 4.0 j and B = 12 i 6.0 j, which of the following is the equation that relates A and B? A. A = (1/2) B B. A = (1/3) B C. A = (1/4) B D.A = (2/3) B E. A = (2/5) Barrow_forward
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