How much mass is converted into energy per second in the sun if this power output is 3.6 xx10^(27) W ?

What causes releases of energy from the sun and stars ?

The angular diameter of the sun is 1920". If the distance of the sun from the earth is 1.5xx10^(11) m, what is the linear diameter of the sun ?

Consider the sun to be a perfect sphere of radius 6.8 xx 10^(8)m . Calculate the energy radiated by sun in one minute. Surface temperature of the sun = 6200 K . Stefan's constant = 5.67 xx 10^(-8) J m^(-2) s^(-1) K^(-4) .

The surface temperature of the sun is 6000K . If we consider it as a perfect black body, calculate the energy radiated away by the sun per second. Take radius of the sun =6.92xx10^(5)km and sigma=5.67xx10^(-8)Jm^(-2)s^(-1)K^(-4)

The sun's angular diameter is measured to be 1920''. The distance of the sun from the earth is 1.496xx10^(11)m. What is the diameter of the sun?

The intensity of solar radiation reaching the illuminated side of the Earth each second is J = 1.36 kW//m^2 . Find the docrease in the internal energy and the muss of tho Sun per second. How long will it take for the Sun's mass to decrease due to radiation by 10% ? The volume of the Sun is to be assumed to remain constant.

What is the moment of the gravitational force of the sun on earth about the axis of its rotation about the sun ?

The distance of the sun from earth is 1.496xx10^(11)m. If the angular diameter of the sun is 2000'', find the diameter of the sun.