Answer:Decreases
Explanation:
Given
Volume is held constant that is it is a isochoric process.
We know that
PV=nRT
as n,V& R are constant therefore only variables are
P & T
so 

As
is decreasing therefore Pressure must also decrease so that ratio remains constant.
Stars are located at a distance which are measured in terms of light years. Light year is an Astronomical unit used to measure distance between distant Celestial bodies.
1 light year = 9460730472580<span>800 metres
But no star is located at a distance of 1 light year. Some stars are located at millions of light years and light travels ~ 3 x 10</span>⁸ m/s. Thus light takes time to reach our atmosphere.
Answer:
6.62s
Explanation:
Metric unit conversion:
364 g = 0.364 kg
789 g = 0.789 kg
Starting from rest, the cart takes 4.49 s to travel a distance of 1.43 m. We can use the following equation of motion to calculate the constant acceleration


Using Newton's 2nd law, we can calculate the force generated by the fan to push the 0.364 kg cart forward

Now that more mass is added, the new acceleration of the 0.789 kg cart is

We can reuse the same equation of motion to calculate the time it takes to travel 1.43 m from rest



If a = 23 and b = 45
a + b = ?
23 + 45 = 68