Car A moves due East at 30 kph at the same instant car B is moving $ 30° E, with a speed of 60 kph. The distance from A to B is 30 km. Find how fast is the distance between them separating after one hour. A. 36 kph B. 38 kph G. 40 kph D. 45 kph A car starting at 12:00 noon travels west at a speed of 30 kph. Another car starting from the same point at 2:00 P.M. travels north at 45 kph. Find how (in kph) fast the two are separating at 4:00 P.M.? A. 49 B. 51 C. 53 D. 55 What is the allowable error in measuring the edge of the cube that is intended to hold 8 cu. m., if the error of the computed volume is not to exceed 0.03 cu. m? 0.002 0.003 0.0025 A. B. C. D. 0.001 75. A standard cell has an emf "E" of 1.2 volts. If the resistance "R" of the circuit is increasing at the rate of 0.03 ohm/sec, at what rate is the current "I" changing at the instant when the resistance is 6 ohms? Assume Ohm's law E = IR. A. -0.002 amp/sec B. 0.004 amp/sec C. -0.001 amp/sec D. 0.003 amp/sec

Car A moves due East at 30 kph at the same instant car B is moving $ 30° E, with a speed of 60 kph. The distance from A to B is 30 km. Find how fast is the distance between them separating after one hour. A. 36 kph B. 38 kph G. 40 kph D. 45 kph A car starting at 12:00 noon travels west at a speed of 30 kph. Another car starting from the same point at 2:00 P.M. travels north at 45 kph. Find how (in kph) fast the two are separating at 4:00 P.M.? A. 49 B. 51 C. 53 D. 55 What is the allowable error in measuring the edge of the cube that is intended to hold 8 cu. m., if the error of the computed volume is not to exceed 0.03 cu. m? 0.002 0.003 0.0025 A. B. C. D. 0.001 75. A standard cell has an emf "E" of 1.2 volts. If the resistance "R" of the circuit is increasing at the rate of 0.03 ohm/sec, at what rate is the current "I" changing at the instant when the resistance is 6 ohms? Assume Ohm's law E = IR. A. -0.002 amp/sec B. 0.004 amp/sec C. -0.001 amp/sec D. 0.003 amp/sec

Name: . Car A moves due East at 30 kph at thesame instant car B is moving S
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Description: . Car A moves due East at 30 kph at thesame instant car B is moving S 30° E, witha speed of 60 kph. The distance from A toB is 30 km. Find how fast is the distancebetween them separating after one hour.A. 36 kphB. 38 kphG. 40 kphD. 45 kphA car start

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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Question

. Car A moves due East at 30 kph at the
same instant car B is moving S 30° E, with
a speed of 60 kph. The distance from A to
B is 30 km. Find how fast is the distance
between them separating after one hour.
A. 36 kph
B. 38 kph
G. 40 kph
D. 45 kph
A car starting at 12:00 noon travels west at
a speed of 30 kph. Another car starting
from the same point at 2:00 P.M. travels
north at 45 kph. Find how (in kph) fast the
two are separating at 4:00 P.M.?
A. 49
B. 51
C. 53
D. 55
What is the allowable error in measuring
the edge of the cube that is intended to
hold 8 cu. m., if the error of the computed
volume is not to exceed 0.03 cu. m?
A.
B.
0.002
0.003
0.0025
C.
D. 0.001
75.A standard cell has an emf "E" of 1.2 volts.
If the resistance "R" of the circuit is
increasing at the rate of 0.03 ohm/sec, at
what rate is the current "I" changing at the
instant when the resistance is 6 ohms?
Assume Ohm's law E = IR.
A. -0.002 amp/sec
B. 0.004 amp/sec
C. -0.001 amp/sec
D. 0.003 amp/sec

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