Physics, 12.08.2020 20:01 jwagner2277
NASA is giving serious consideration to the concept of solar sailing. A solar sailcraft uses a large, low mass sail and the energy and momentum of sunlight for propulsion.
(a) Should the sail be absorbing or reflective? Why?
(b) How large a sail is necessary to propel a 10000kg
spacecraft against the gravitational force of the sun? Express your result in square kilometers.
(c) Explain why your answer to part (b) is independent of the distance from the sun.
The gravitational constant is G=6.67×10−11m3⋅s−2⋅kg−1.
The mass of the sun is Ms=1.99×1030kg.
Answers: 1
Physics, 23.06.2019 06:30, deebroussard
Pl i beg u so much now propane burns in oxygen to produce carbon dioxide and steam. the unbalanced equation for this reaction is: c3h8 + o2 → co2 + h2o use coefficients to balance this equation. a) c3h8 + 3 o2 → 3 co2 + 4 h2o b) c3h8 + o2 → 3 co2 + 4 h2o c) c3h8 + 5 o2 → 3 co2 + 4 h2o d) 2 c3h8 + 5 o2 → 3 co2 + 4 h2o
Answers: 1
Physics, 23.06.2019 07:00, tyreshagarrett123
Can someone me with my physics questions? i need correct answers only!
Answers: 2
Physics, 23.06.2019 18:30, davi113001
Aforce of 6600 n is exerted on a piston that has an area of 0.010 [tex]m^{2}[/tex]. what area is rewired for a second piston to exert a force of 9900 n? use [tex]\frac{f_{1} }{a_{1} } = \frac{f_{2} }{a_{2} }[/tex]a. 0.0015 [tex]m^{2}[/tex]b. 66 [tex]m^{2}[/tex]c. 150 [tex]m^{2}[/tex]d. 0.006 [tex]m^{2}[/tex]
Answers: 1
NASA is giving serious consideration to the concept of solar sailing. A solar sailcraft uses a large...
Physics, 09.07.2019 00:00
Mathematics, 09.07.2019 00:00
Mathematics, 09.07.2019 00:00
Mathematics, 09.07.2019 00:00
Mathematics, 09.07.2019 00:00
History, 09.07.2019 00:00