Which is evidence that scientists use to support the big bang theory?
a.
earth is the o...
Physics, 22.08.2019 23:50 JanetQ2002
Which is evidence that scientists use to support the big bang theory?
a.
earth is the only planet with permanent liquid water on its surface.
b.
most galaxies are moving away from each other.
c.
most orbits have an elliptical shape.
d.
the outer planets are mostly composed of hydrogen and helium.
Answers: 2
Physics, 21.06.2019 20:10
Select the correct answer. anna will wear a black dress when she attends het cousin's wedding. which color(s) does the dress absorb? a. all colors b. no colors c. red and green d. white
Answers: 1
Physics, 22.06.2019 01:10
Aparticle initially moving east with a speed of 20.0 m/s, experiences an acceleration of 3.95 m/s, north for a time of 8.00 s. what was the speed of the particle after this acceleration, in units of m/s? give the answer as a positive number.
Answers: 1
Physics, 22.06.2019 03:00
The passage that directs air to the lungs is called a. diaphragm. b. larynx. c. bronchi. d. pharynx.
Answers: 2
Physics, 22.06.2019 14:10
Your starship, the aimless wanderer, lands on the mysterious planet mongo. as chief scientist-engineer, you make the following measurements: a 2.50-kg stone thrown upward from the ground at 14.0 m/s returns to the ground in 5.70 s ; the circumference of mongo at the equator is 2.20×10^5 km ; and there is no appreciable atmosphere on mongo. (a) the starship commander, captain confusion, asks for the following information: what is the mass of mongo? (b) if the aimless wanderer goes into a circular orbit 2.20×10^4 km above the surface of mongo, how many hours will it take the ship to complete one orbit? (c) an unmanned spacecraft is in a circular orbit around the moon, observing the lunar surface from an altitude of 44.0 km . to the dismay of scientists on earth, an electrical fault causes an on-board thruster to fire, decreasing the speed of the spacecraft by 23.0 m/s . if nothing is done to correct its orbit, with what speed (in km/h) will the spacecraft crash into the lunar surface?
Answers: 1
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