In system called the star system we have 1 star kilogram `=10^(20) kg`. 1 starmeter `=10^(8) m`, 1 starsecond `=10^(3)` second then calculate the value of 1 joule in this system.

In a new system of units called star units, 1 kg* = 10 kg , 1m* = 1km and 1s*= 1minute, what will be the value of 1J of energy in the new system?

If in a system unit of mass is 5kg, unit of length is 10m and unit of time as 5sec, then what will be the value of 1 unit energy in new system.

In a particular double star system two stars of mass 3 xx10^(30) kg each revolve about their common centre of mass 1xx10^(11) m on away. (i). Calculate their common period of revolution (ii). Suppose that a meteoroid (small solid particle in space) passes through this centre of mass moving at right angles to the orbital plane of the stars. What must its speed be if it is to escape from the gravitational field of the double star?

In a particular double star system two stars of mass 3.22xx10^(30) kg each revolve about their common centre of mass 1.12xx10^(11) on away. (i). Calculate their common period of revolution, in years (ii). Suppose that a meteoroid (small solid particle in space) passes through this centre of mass moving at right angles to the orbital plane of the stars. What must its speed be if it is to escape from the gravitational field of the double star?

In a particular double star system two stars of mass 3.22xx10^(30) kg each revolve about their common centre of mass 1.12xx10^(11) on away. (i). Calculate their common period of revolution, in years (ii). Suppose that a meteoroid (small solid particle in space) passes through this centre of mass moving at right angles to the orbital plane of the stars. What must its speed be if it is to escape from the gravitational field of the double star?

1 joule of energy is to be converted into new system of units in which length is measured in 10 metre, mass in 10 kg and time in 1 minute. The numerical value of 1 J in the new system is :-

1 joule of energy is to be converted into new system of units in which length is measured in 10 metre, mass in 10 kg and time in 1 minute. The numerical value of 1 J in the new system is :-

1 joule of energy is to be converted into new system of units in which length is measured in 10 metre, mass in 10 kg and time in 1 minute. The numerical value of 1 J in the new system is :-