When the planet Jupiter is at a distance of 824.7 million kilometer from the earth, its angular diameter is measured to be 35.72" of arc. Calcutate the diameter of the Jupiter.

The mass of planet Jupiter is 1.9xx10^(27)kg and that of the Sun is 1.9xx10^(30)kg . The mean distance of Jupiter from the Sun is 7.8xx10^(11) m. Calculate te gravitational force which Sun exerts on Jupiter. Assuming that Jupiter moves in circular orbit around the Sun, also calculate the speed of Jupiter G=6.67xx10^(-11)Nm^(2)kg^(-2) .

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 ?

What is the solid angle subtended by the moon at any point of the Earth, given the diameter of the moon is 3474 km and its distance from the Earth 3.84xx10^8 m.

Draw a circle of diameter 7 cm. Take a point M at a distance of 10cm from its center. Construct a pair of tangents from the point M to the circle.

A spherical balloon is being inflated at the rate of 35 cc/min. The rate of increase of the surface area of the balloon when its diameter is 14 cm is a) 7cm^2//min b) 10cm^2//min c) 17.5cm^2//min d) 28cm^2//min