Since accelerations are equivalent to gravity, a person could cancel the effects of Earth's gravity by
A) falling from a high place.
B) going into orbit around Earth.
C) Both of the above.
D) accelerating straight upward at an acceleration of 1g.
E) Nonsense--you can't cancel the effects of gravity.
C
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A__________is a device that separates light by wavelengths to produce a spectrum
A) lens B) mirror C) spectrograph D) interferometer
An alpha particle is a nucleus of helium. It has twice the charge and four times the mass of the proton. When they were very far away from each other,
but headed toward directly each other, a proton and an alpha particle each had an initial speed of 0.0030c, where c is the speed of light. What is their distance of closest approach? Hint: There are two conserved quantities. Make use of both of them. (c = 3.00 × 108 m/s, k = 1/4??0 = 8.99 × 109 N ? m2/C2, e = 1.60 × 10-19 C, mproton = 1.67 x 10-27 kg) A) 3.3 × 10-13 m B) 2.6 × 10-13 m C) 2.1 × 10-13 m D) 2.9 × 10-13 m
Proof that Earth revolves around the Sun is obtained by the use of ______________ and the ______________
Fill in the blank(s) with correct word
Both the classical and quantum mechanical probability densities predict for a simple harmonic oscillator that