If the distance between the earth and the sun were twice what it is now, the gravitational force exerted on the earth by the sun would be (a) twice as large as it is now (b) four times as large as it is now (c) half of what it is now (d) one-fourth of what it is now

If the distance between the earth and the sun were twice what it is now, the gravitational force exerted on the earth by the sun would be (a) twice as large as it is now (b) four times as large as it is now (c) half of what it is now (d) one-fourth of what it is now
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A hiker stands at the bottom of steep hill. The hiker may follow a straight line path to the top of the hill, a distance of 300 feet, or she may follow a zig-zag path to the top of the hill and walk a distance of 600 feet. The work done by the force of gravity along the zig-zag path is how many times the work going along the straight path? Is it: w) equal x) twice y) 4 times z) 8 times?

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If a copper wire is increased to double its length, its resistance will become (1) four times (2) one–fourth (3) double (4) half

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A wire is being used as a replacement having twice the length and one-half the cross-sectional area of the original wire. The resistance of this new wire, when compared to that of the original wire, is _____________. A. four times as great B. twice as much C. the same as the original resistance D. one-half of the original resistance

Description : A wire is being used as a replacement having twice the length and one-half the cross-sectional area of the original wire. The resistance of this new wire, when compared to that of the original wire, ... B. twice as much C. the same as the original resistance D. one-half of the original resistance

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A replacement wire having twice the length and one-half the cross-sectional area of the original wire will have a resistance that is _____________. A. four times that of the original wire B. twice that of the original wire C. the same as that of the original wire D. one-half that of the original wire

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Which of the following expresses the relationship of the input and output frequencies in a full wave rectifier? A. The output frequency is the same as input frequency. B. The output frequency is one-half the input frequency. C. The output frequency is twice the input frequency. D. The output frequency is four times the input frequency.

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The compressive stress induced in a square key is, (A) Equal to shear stress (B) Four times of shear stress (C) Twice of shear stress (D) Half of shear stress

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If diameter of a shaft is doubled the power transmitted capacity will be a. Either twice or half b. Four times c. Eight times d. Same

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Of the 5 numbers, the first is twice the second, the second is one – third of the third, the third is 5 times of the fourth, and the fourth is three – seventh of fifth. The average of the numbers is 35. The largest of these number is. A) 30.63 B) 65.625 C) 43.75 D) 75.356

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Last Answer : B) Let the fifth number be x'. 4th number = 3/7 x 3rd number = 5 (3/7 x) = 15/7x 2nd number = 1/3 (15/7 x) = 15 /21 x 1st number = 2 (15/21 x) = 30/21 x X + 3/7 x + 15 /7 ... 120x = 3675 X = 30.625 So the numbers are 30.62, 13.125, 65.625, 21.875, 43.75. Therefore largest number is 65.625.

A satellite stay in orbit because the following two factors are balanced A. Satellite weight and speed B. Gravitational force and centrifugal force C. Centripetal force and speed D. Satellite weight and the pull of the moon and sun

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A force applied to a rocket gives it an upward acceleration equal to 2 times the acceleration of gravity. The magnitude of the force is equal to: w) the weight of the rocket x) twice the weight of the rocket y) three times the weight of the rocket z) four times the weight of the rocket

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Which characteristic of the Sun primarily determines the orbits of planets in our solar system A Large volume B Strong gravitational field C Mostly made of hydrogen D High surface temperatures?

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How long will the distance of the earth from the sun be half of the current distance in a year ?

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