the mass of the sun is 2×10^30kg.the mass of a proton is 2×10^-27kg.if the sun was made only of protons.calculate the number of protons in the sun?

2*10^30kg * 1proton/2*10^-27kg = 1*10^57

Protons

Its bloody physics. Big Neil deGrasse Tyson Fan. He is living form of Physics.

To calculate the number of protons in the sun, we need to determine the mass of the sun in terms of protons.

Given:
Mass of the sun = 2×10^30 kg
Mass of a proton = 2×10^-27 kg

We can find the number of protons by dividing the mass of the sun by the mass of a proton.

Number of protons = Mass of the sun / Mass of a proton

Number of protons = (2×10^30 kg) / (2×10^-27 kg)

To divide the powers of 10, we subtract the exponents:

Number of protons = 2^30-(-27) = 2^57

Therefore, the number of protons in the sun would be 2 raised to the power of 57, or approximately 1.44×10^17 protons.

To calculate the number of protons in the sun, we need to divide the total mass of the sun by the mass of a single proton.

First, let's convert the mass of the sun into kilograms. Given that the mass of the sun is 2 × 10^30 kg, there is no need to convert it further.

Next, we need to calculate the mass of a single proton, which is 2 × 10^-27 kg.

Now, we can divide the mass of the sun by the mass of a single proton to find the number of protons in the sun:

Number of protons = Mass of the sun / Mass of a single proton
= 2 × 10^30 kg / 2 × 10^-27 kg

To divide numbers in scientific notation, subtract the exponents:

Number of protons = 2 × 10^30 kg / (2 × 10^-27 kg)
= 2 × 10^30 kg × 10^27 kg / 2
= (2 × 10^30 kg × 10^27 kg) / 2
= 10^(30+27) / 2
= 10^57 / 2
= 5 × 10^56

So, the number of protons in the sun, if it were made only of protons, would be approximately 5 × 10^56.