Physics, 23.09.2019 23:00 bskyeb14579
Hey guys! i need about 5 questions answered! i will give out the brainliest answer to the first person to answer these questions! each question is 5 points! total: 25 points.
1. how many stars are in a galaxy?
a. hundreds
b. thousands
c. millions
d. billions
2. which galaxy does not have a distinctive shape?
a. an irregular galaxy
b. an elliptical galaxy
c. a barred-spiral galaxy
d. a clustered galaxy
3. how do galaxies exist in the universe?
a. they exist together with no empty space in between them.
b. they spin within a few miles of each other.
c. they form clusters that are light-years away from other clusters.
d. they are evenly distributed throughout the universe.
4. what is a light-year?
a. the distance light travels from the sun to the earth
b. the distance light travels in one orbit of the moon
c. the time it takes light to travel across the universe
d. the distance light travels in one earth year
5. how long does it take for light to reach earth from a star 8 light-years away?
a. 8 earth minutes
b. 16 earth minutes
c. 8 earth years
d. 16 earth years
! ( science )
Answers: 2
Physics, 21.06.2019 18:20
Let f(x) = x4- 8x2 . find the relativeextrema of this function using the second derivative test.
Answers: 2
Physics, 22.06.2019 07:00
Hen a gfci receptacle device is installed on a 20-ampere branch circuit (12 awg copper), what is the minimum volume allowance (in cubic inches) required for conductor fill for each conductor in the outlet box?
Answers: 1
Physics, 22.06.2019 20:10
On a frictionless air track, a blue glider with mass 0.200 kg is moving to the right with a speed of 8.00 m/s. it strikes a red glider that has mass 0.600 kg and that is initially at rest. after the collision, the blue glider is moving to the left with a speed of 3.00 m/s.(a) what are the magnitude and direction of the velocity of the red glider after the collision? (b) is this collision elastic?
Answers: 1
Hey guys! i need about 5 questions answered! i will give out the brainliest answer to the first pe...
Mathematics, 22.05.2020 07:57
English, 22.05.2020 07:57
English, 22.05.2020 07:57
Biology, 22.05.2020 07:57
Mathematics, 22.05.2020 07:57
Biology, 22.05.2020 07:57
Computers and Technology, 22.05.2020 07:57
Biology, 22.05.2020 07:57
Mathematics, 22.05.2020 07:57
Mathematics, 22.05.2020 07:57