How "slow" must a 200. gram ball move to have a deBroglie wavelength of 1.0 mm?
What will be an ideal response?
3.3 × 10-30 m/s
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While riding a bicycle, if you stop pedaling you will still continue to move forward due to ________.
A. pressure B. inertia C. gravity D. acceleration
The iron we commonly find in our surroundings came from:
A) the iron core of a massive star which exploded as a type I supernova. B) planetary nebulae. C) jets ejected by a rapidly spinning pulsar. D) material ejected by a nova explosion. E) decay of nickel 56 and cobalt 56 in a supernova remnant.
Suppose that large jovian planets had never formed in our solar system. Which of the following would most likely be true?
A) There would be a large empty region in our solar system between the orbit of Mars and the Kuiper belt. B) Earth would orbit much closer to the Sun. C) Neither the asteroid belt nor Oort cloud would exist. D) Earth would have suffered far fewer impacts.
Dark dust clouds are optically invisible, but give off radio energy
Indicate whether the statement is true or false