Inquiry into Physics
8th Edition
ISBN: 9781337515863
Author: Ostdiek
Publisher: Cengage
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Chapter A, Problem 28Q
To determine
The value of given operation using scientific notation.
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Express this product in units of km3 in standard scientific notation and with the appropriate number of significant figures:
(4.2 km) × (4.0 m) × (13.24 × 10−3 mm)
In mathematical operations involving logarithm, the rule is to retain as many decimal places in the result as there are significant figures in the given value. Calculate log(2.73 ×10⁻⁵).
Two points in the xy plane have Cartesian coordinates (6.00, -4.00) m and (-7.00, 7.00) m.
(a) Determine the distance between these points.
m
(b) Determine their polar coordinates.
(6.00, -4.00) r =
(6.00, -4.00)
e =
(-7.00, 7.00)
(-7.00, 7.00)
r =
0 =
m
° counterclockwise from the +x-axis
m
° counterclockwise from the +x-axis
Chapter A Solutions
Inquiry into Physics
Ch. A - Prob. 1QCh. A - Prob. 2QCh. A - Prob. 3QCh. A - Prob. 4QCh. A - Prob. 5QCh. A - Prob. 6QCh. A - Prob. 7QCh. A - Prob. 8QCh. A - Prob. 9QCh. A - Prob. 10Q
Ch. A - Prob. 11QCh. A - Prob. 12QCh. A - Prob. 13QCh. A - Prob. 14QCh. A - Prob. 15QCh. A - Prob. 16QCh. A - Express the following numbers in scientific...Ch. A - Prob. 18QCh. A - Prob. 19QCh. A - Prob. 20QCh. A - Prob. 21QCh. A - Prob. 22QCh. A - Prob. 23QCh. A - Prob. 24QCh. A - Prob. 25QCh. A - Prob. 26QCh. A - Prob. 27QCh. A - Prob. 28QCh. A - Prob. 29QCh. A - Prob. 30Q
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- Perform the following arithmetic operations, keeping the correct number of significant figures in your answer. a. The product 56.2 0.154 b. The sum 9.8 + 43.4 + 124 c. The quotient 81.340/arrow_forwardFigure P1.6 shows a frustum of a cone. Match each of the three expressions (a) (r1 + r2)[h2 + (r2 r1)2]1/2, (b) 2(r1 + r2), and (c) h(r12 + r1r2 + r22)/3 with the quantity it describes: (d) the total circumference of the flat circular faces, (e) the volume, or (f) the area of the curved surface. Figure P1.6arrow_forwardThe polar coordinates of a point are r = 5.50 m and = 240. What are the Cartesian coordinates of this point?arrow_forward
- A house is advertised as having 1 420 square feet under its roof. What is area in square meters? (a) 4 660 m2(b) 132 m2 (c) 158m2 (d) 132 m2 (e) 10.2m1arrow_forwardState how many significant figures are proper in the results of the following calculations: (a) (106.7)(98.2)/(46.210)(1.01) (b) (18.7)2 (c) (1.601019)(3712)arrow_forwardFigure 1.19 shows two vectors lying in the xy-plane. Determine the signs of the x- and y-components of A, B, and A+B.arrow_forward
- One student uses a meterstick to measure the thickness of a textbook and obtains 4.3 cm 0.1 cm. Other students measure the thickness with vernier calipers and obtain four different measurements: (a) 4.32 cm 0.01 cm. (b) 4.31 cm 0.01 cm, (c) 4.24 cm 0.01 cm, and (d) 4.43 cm 0.01 cm. Which of these four measurements, if any, agree with that obtained by the first student?arrow_forwardTwo points in the xy plane have Cartesian coordinates(2.00, - 4.00) m and ( - 3.00, 3.00) m. Determine (a) the distance between these points and (b) their polar coordinates.arrow_forwardThe coordinates of a point on a rectangular coordinate system are (4.00, y). The polar coordinates of the same point are (r, 15.0°). What are the values of r and y?arrow_forward
- A calculator displays a result as 1.3652480 × 107 kg. The magnitudes of the quantities used to determine the result are 190, 6.28 x 10-5, 7.1 x 109, and 322.7. How many digits should be included as significant when the result is written down? zero one two three fourarrow_forwardProblem 1: Suppose A = (-3.03 m)i + (4.35 m)j, B = (2.71 m)i + (-4.29 m)j + (2.99 m)k, and D = (-2.48 m)i + (-4.5 m)j. Part (a) What is the angle, in degrees, between D and A? Numeric : A numeric value is expected and not an expression. Part (b) What is the angle, in degrees, between D and B? Numeric : A numeric value is expected and not an expression.arrow_forwardTwo points in the xy plane have Cartesian coordinates (2.50, -6.00) m and (-4.50, 4.50) m. (a) Determine the distance between these points. m (b) Determine their polar coordinates. (2.50, -6.00) r = (2.50, -6.00) ° counterclockwise from the +x-axis (-4.50, 4.50) r = (-4.50, 4.50) ° counterclockwise from the +x-axisarrow_forward
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