Physics, 13.11.2020 22:10 zoebtharpe
1) The picture shows a van and a car traveling in the same direction. The
500 kg van going right at 5.0 m/s bumps into a 400 kg car moving in
the same direction at 2.0 m/s. The car has a final speed of 4.0 m/s.
What is the final velocity of the van? Assume there are no net external
forces and thus, momentum is conserved during the collision.
A)
2.5 m/s
B)
3.0 m/s
C)
3.4 m/s
D)
4.3 m/s
Answers: 2
Physics, 22.06.2019 13:00
Nacidified solution was electrolyzed using copper electrodes. a constant current of 1.18 a caused the anode to lose 0.584 g after 1.52 ✕ 103 s. given that the charge of an electron is 1.6022 ✕ 10−19 c, calculate avogadro's number. assume that copper is oxidized to cu2+ ions.
Answers: 1
Physics, 22.06.2019 20:30
Light from two different sources are incident upon the same side of a polarizing filter. light from one source is polarized with total intensity ip, while light from the other source is unpolarized with total intensity iu. as you rotate the polarizing filter through 360 degrees, the intensity of the transmitted light on the other side varies by a factor of 9. what is the relative intensity of the initial polarized source to the unpolarized source, or ip/iu?
Answers: 2
Physics, 23.06.2019 02:30
Which lists the amplitudes of sound waves from these sources in order from greatest to least? busy roadway, kids whispering, average home chainsaw, diesel truck, rustling leaves kids whispering, vacuum cleaner, jet airplane library, conversational speech, music from speaker
Answers: 1
1) The picture shows a van and a car traveling in the same direction. The
500 kg van going right at...
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