Physics, 06.05.2020 22:03 kaylee2828

A 1,200 kg car travels at 20 m/s. what is it’s momentum ?

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Physics, 22.06.2019 05:00, anime333

Modern physics a photon emitted from an excited hydrogen atom has an energy of 3.02 electron volts. which electron energy-level transition would produce this photon? a. n=1 to n=6 b. n=2 to n=6 c. n=6 to n=1 d. n=6 to n=2 i chose b but the correct answer is d can someone tell me why? and what's the difference?

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Physics, 22.06.2019 09:00, NatalieAllen11

What changes occur in the brain during the teenage years? 25 points, someone me out!a.) thinking becomes slower as the brain grows larger. b.) connections between neurons become stronger and faster. c.) unused neurons fuse together to form larger, better functioning neurons. d.) more neurons are developed.

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Physics, 22.06.2019 15:50, showerofstars

How many neutrons does plutonium -196 with an atomic number of 78.

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Physics, 22.06.2019 17:30, madisonnewby5021

Four point charges each having charge q are located at the corners of a square having sides of length a. find symbolic expressions for the following. (a) the total electric potential at the center of the square due to the four charges (use any variable or symbol stated above along with the following as necessary: ke.) vtotal= (b) the work required to bring a fifth charge p from infinity to the center of the square (use any variable or symbol stated above along with the following as necessary: w=