Answer:
Yes
Explanation:
By definition, the circumpolar stars are those stars which neither rise nor set. They trace a complete circle around the pole star. That means they are always above the horizon. They might not be visible during the daytime because of Sunlight and atmosphere but that doesn't mean they are below the horizon. They will still be above the horizon but will be visible only during the night time.
B. The Earth radiates an amount of energy into space equal to the amount it receives.
Part of the solar energy is reflected by the Earth into space, this is known as albedo. The other part of the energy radiated by the Earth in the form of infrared radiation, is absorbed by the greenhouse gases, which cause most of this infrared radiation to be emitted into space. Therefore, the net flow of energy is zero.
Answer:
After it finishes speeding up, the car goes 72 [m]
Explanation:
To solve this problem we must first understand the graphics. It is clear that in the last 6 seconds, that is, from the fourth to the tenth second, the car moves at a constant speed.
Therefore in this time interval, the car moves at a constant speed.
With the following equation of kinematics, we can calculate the distance traveled.
where:
x = final point [m]
x₀ = initial point [m]
v = constant velocity = 12 [m/s]
t = time = 6 [s]
Now replacing we have:
That is because salt solutions contains Na+ and CI- ions When ions are present in the solution, these ions can move through the solution to carry an electric current. But sugar molecules DO NOT break down into ions when dissolved.
The line that indicates areas where the pressure is the same on a weather map is called isobar.
The term isobars refer to the lines that connect the points with same atmospheric pressure on a weather map. The distribution of the isobars is affected by many factors, such as the magnitude and the direction of the wind.