Motion in a circle at constant speed is motion with constant acceleration
Indicate whether the statement is true or false
F
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To connect a pair of resistors so their equivalent resistance (the single resistor having their combined value) will be least, connect them in
A) series. B) parallel. C) either of these
Which of the following is not a strong argument for the theory that some large elliptical galaxies formed as the result of galaxy collisions?
A) Elliptical galaxies dominate the population in dense galaxy clusters. B) Some ellipticals have stars and gas that rotate opposite to the rest of the galaxy. C) Some elliptical galaxies are surrounded by shells of stars. D) Computer simulations predict that the product of a galaxy collision is generally an elliptical galaxy. E) Galaxy collisions are common and most galaxies in the universe are elliptical.
A photon is a particle that
A) has zero electric charge. B) has zero electric field associated with it. C) cannot travel in a vacuum. D) has a velocity in a vacuum that varies with the photon frequency.
A person weighing 180 pounds stands on snowshoes. If the total area of the 2 snowshoes is 900 square inches, what is the pressure on the snow?