What is the value of J?

There is an electric field E in x-direction. If the work done on moving a charge of 0.2C through a distance of 2m along a line making a angle 60^@ with x-axis is 4 J, then what is the value of E?

What is the value of 'G' on moon?

What is the value of Rydberg constant?

What is the value of sina . .

In fig. what is the value of x?

What is the value of L for a solenoid?

What is the value of G in SI?

What is the value of sin A .