If a main sequence star is cooling and expanding, it is entering the red giant stage. This means that the star has burned up all of it's hydrogen and is now starting to burn its helium making it cooler.
Answer:
Answer: B. Explanation: For an object to accelerate the force on it must be increased. According to Newton's second law of motion.
Explanation:
I do Accelerate to good luck
Answer:
|X| = 72 cm
Explanation:
We need to find the magnitude of vector X.
Vector Y = 21 cm
Vector Z = 75 cm
We know that, the magnitude of resultant vector is given by :

So, the value of magnitude of vector X is 72 cm
Relativistic mean its so fast its a fraction of the sped of light.
Answer:K.E=449598.5j
Explanation:
Kinetic energy of a moving car=1/2mv^2
Where m is the mass of the car
And V is the velocity of the car
K.E=1/2 ×1300×26.3^2
K.E=449598.5j