Physics, 05.05.2020 21:32, uticabadgirl
: match each description below with the type of star that is described. You may assume that all of the stars described have approximately the same mass as the Sun. This is an adaptation of Thought Question 16, page 847 in OpenStax Astronomy. A. A star with no nuclear reactions going on in the core, which is made primarily of carbon and oxygen B. A star of uniform composition from center to surface; it contains hydrogen but has no nuclear reactions going on in the core. C. A star that is fusing hydrogen to form helium in its core. D. A star that is fusing helium to carbon in the core and hydrogen to helium in a shell around the core.
Answers: 1
Physics, 20.06.2019 18:04, dereklilgoat
If you want to change the pitch of a sound, you have to change the
Answers: 1
Physics, 21.06.2019 20:00, aa985960
Which sentences describe disadvantages of burning fossil fuels instead of using hydrogen fuel cells? burning fossil fuels contributes to climate change. burning fossil fuels takes place inside expensive fuel cells. fossil fuels aren't widely available, but pure hydrogen is. fossil fuels are nonrenewable.
Answers: 1
Physics, 22.06.2019 17:00, cia196785920
(a) if the pressure in gas is doubled while its volume is held constant, by what factor do (i) vrms and (ii) change? (b) is it possible to boil water at room temperature (20oc) without heating it? explain.
Answers: 3
: match each description below with the type of star that is described. You may assume that all of t...
Mathematics, 29.02.2020 00:25