What is the period of a satellite orbiting around the earth in a radius which is one half that of the distance from the earth to the moon?

the statement is false.

only four examples are listed.

from our point of view here on the surface, the 'ecliptic' is the apparent path of the sun through the constellations of the zodiac in the course of a year. (d)

the torque is 60 nm.

explanation

the torque of a system whose force is 30 n and the length is 2 m, then the torque is 60 nm. the formula for torque is ( force ) x ( moment arm ). hence by putting values in the formula, torque = ( 30 n ) ( 2 m) which is equal to 60 nm. the unit for torque is newton-meter (nm). torque is the turning effect or the force which tends to move the object in a circle and tends to rotate around a circle. torque is a vector quantity.

the si base units for torque is kg ⋅ m 2 ⋅ s − 2.