Physics, 04.05.2021 06:40 ayoismeisalex
A constellation is when a group of stars form a shape or a pattern. The Big Dipper is part of the Ursa Major constellation. What is true about the stars that make up the Big Dipper?
A. They are in the same solar system as Earth
B. They are in the same planetary orbit as Earth
C. They are millions of light years away from each other
D. They will form the Big Dipper from any viewing vantage point in the galaxy
Answers: 2
Physics, 21.06.2019 22:20
Aboxcar traveling at 12 m/s approaches a string of 5 identical boxcars sitting stationary on the track. the moving boxcar collides and links with the stationary cars and they all move off together along the track. what is the final speed of the cars immediately after the collision? (you may take the mass of each boxcar to be 18,537 kg.)
Answers: 1
Physics, 22.06.2019 11:20
Suppose a diode consists of a cylindrical cathode with a radius of 6.200×10^−2 cm , mounted coaxially within a cylindrical anode with a radius of 0.5580 cm . the potential difference between the anode and cathode is 260 v . an electron leaves the surface of the cathode with zero initial speed (v initial=0). find its speed vfinal when it strikes the anode.
Answers: 1
Physics, 22.06.2019 12:30
Consider a hydrogen atom in the ground state. what is the energy of its electron? =e= jj now consider an excited‑state hydrogen atom. what is the energy of the electron in the =5n=5 level? =e5= j
Answers: 3
A constellation is when a group of stars form a shape or a pattern. The Big Dipper is part of the Ur...
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