Answer:
Be serious or else CEO of brainly will kick you out
The correct answer is A. Blue
Blue stars are the hottest stars. Compared to blue stars, our sun is a star of average heat. That is just to put into perspective how hot they are.
Answer: Either a change in mass or velocity or both.
Explanation: Since the equation for momentum is p (momentum) = m (mass)* v (velocity), if the mass or velocity (or both) of the object is changed, the momentum will change.
We are to calculate the acceleration.
Answer:
-9.8 m/s²
Explanation:
Since the egg is in a free fall, it means that the force due to gravity will be equal to the normal force.
Now,
Force due to gravity: F_g = mg
Normal force; F_n = ma
Thus;
mg = ma
m will cancel out to get
g = a
Since it is a free fall motion, then gravity is negative;
-g = a
g has a constant value of 9.8 m/s². Thus;
a = -9.8 m/s²
