Answer:
2950 m
Explanation:
The radius to which the sun must be compressed to become a black hole is equal to its Schwarzschild radius, which is given by the formula:
where
G is the gravitational constant
M is the mass of the star
c is the speed of light
For the Sun, its mass is
Therefore, its Schwarzschild radius is
Answer:10volts
Explanation:
Current=0.5amps
Resistance=20ohms
Voltage=current x resistance
Voltage=0.5 x 20
Voltage=10
There is friction between the two.
The band of stability curves upward at high atomic numbers due to the fact that excess of neutrons are required due to the repulsion between protons.
Atomic number is the number of protons. As the number of protons (atomic number) increase, the electrical repulsion force, due to the same sign of the protons inside the nucleus, becomes more dominant compared to the nuclear force attractions, then the nucleus needs more neutrons to gain stability.The presence of more neutrons decrease the density of protons which decreases the repulsion among them.