When you catch a ball, you feel a force against your hand. Why?
What will be an ideal response?
You have to exert a force against the ball to decelerate it and the ball exerts an equal and opposite force against your hand.
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Neutron stars seem to travel a good deal faster than most stars in orbit about the Galaxy
Indicate whether the statement is true or false
The asteroid belt is located
A) between the orbits of Mars and Jupiter. B) between the orbits of Earth and Mars. C) between the orbits of Jupiter and Saturn. D) beyond the orbit of Neptune.
A computer accessory salesman attempts to convince you to purchase a "solar neutrino" shield for your new computer. (It's even "on sale"!) Why do you turn down this excellent offer?
A) Neutrinos rarely, if ever, interact with your computer. B) The Earth's natural magnetic field already offers excellent protection against the onslaught of solar neutrinos. C) Solar neutrinos are generated by solar winds, but we're in a solar minimum now, so the risk of damage is very low. D) There's no such thing as a solar neutrino.
What determines if a star becomes a white dwarf, a neutron star, or a black hole?
A) the principal factor is mass B) the principal factor is density C) the principal factor is temperature D) the principal factor is luminosity