Newton found that gravity varied with the ________ of the distance between the two bodies pulling on each other
Fill in the blank(s) with correct word
inverse square
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When a boxer hits a punching bag, the strength of his punch depends on how much force the bag can
A) endure. B) exert on the boxer's fist. C) soften.
The mercury column in an ordinary medical thermometer doubles in length when its temperature changes from 95? F to 105? F. Choose the correct statement:
A. the coefficient of volume expansion of mercury is 0.1 per F? B. the coefficient of volume expansion of mercury is 0.3 per F? C. the coefficient of volume expansion of mercury is (0.1/3) per F? D. the vacuum above the column helps to "pull up" the mercury this large amount E. none of the above is true
You see colors in a rainbow because of
a. interference b. diffraction c. specular reflection d. dispersion e. polarization
Suppose that the Sun shrank in size but that its mass remained the same. What would happen to the orbit of the Earth?
A) Earth's orbit would be unaffected. B) The size of Earth's orbit would shrink, and it would take less than one year to orbit the Sun. C) Earth's orbit would expand, and it would take more than one year to orbit the Sun. D) Earth would change from a bound orbit to an unbound orbit and fly off into interstellar space.