The largest component of municipal solid waste in the U.S. is
a. glass b. plastics c. paper d. yard waste e. metals
c
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Astronaut Rachel leaves Earth in a spaceship at a speed of 0.960c relative to an observer on Earth. Rachel's destination is a star system 14.4 light-years away (one light-year is the distance light travels in one year)
According to Rachel, how long does the trip take? A) 14 years B) 15 years C) 11 years D) 4.2 years E) 23 years
A meniscus lens is made with the radius of curvature of the convex surface being 45.0 cm and the concave surface 25.0 cm. If the glass used has index of refraction 1.50, what is the focal length of this lens?
A) 32 cm B) 113 cm C) 25.0 cm D) -32 cm E) -113 cm
Go to the screen "Key Evidence of Water," and and select the feature called "Recurring Slope Lineae." Study this feature at each of the four zoom levels offered, and be sure to view the animation called "recurring slope linaea (gif)" that you will see at the third zoom level. Which of the following statements are true?
A. The recurring slope lineae are found among impact craters. B. The recurring slope lineae look like narrow dark streaks. C. The recurring slope lineae are found on flat ground. D. The recurring slope lineae appear to grow in spring and summer. E. The recurring slope lineae appear to be volcanic in origin.
During ?- decay
A) a neutron is transformed to a proton. B) a proton is transformed to a neutron. C) a neutron is ejected from the nucleus. D) a proton is ejected from the nucleus. E) the number of nucleons increases.