a. made of many different elements
Physics, 23.01.2020 03:31 EsiahJohnson
Which of the following is true of all minerals?
a. made of many different elements
b. come from the ground as crystals
c. can be liquids, solids, and gases
d. made of one or more elements from the periodic table
Answers: 3
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Atrain departs from its station at a constant acceleration of 5 m/s. what is the speed of the train at the end of 20s?
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Ahot-air balloonist, rising vertically with a constant speed of 5.00 m/s releases a sandbag at the instant the balloon is 40.0 m above the ground. after it is released, the sandbag encounters no appreciable air drag. compute the velocity of the sandbag at 0.250 s after its release.
Answers: 2
Physics, 22.06.2019 11:00
Afisherman notices that his boat is moving up and down periodically without any horizontal motion, owing to waves on the surface of the water. it takes a time of 2.20 s for the boat to travel from its highest point to its lowest, a total distance of 0.670 m . the fisherman sees that the wave crests are spaced a horizontal distance of 5.80 m apart. (a) how much is the wavelength? (b) find the period of the wave. (c) how fast are the waves traveling? (d) what is the amplitude a of each wave?
Answers: 3
Physics, 22.06.2019 15:00
Holes drilled several kilometers into earth’s crust provide direct evidence about earth’s interior in the form of
Answers: 1
Which of the following is true of all minerals?
a. made of many different elements
a. made of many different elements
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