A force of 20 N acts over an of `4 cm^2`. Find the value of pressure?(`in Nm^-2`)

Find the value of 1+i^2+i^4+i^6++i^(2n)

A force of 20 N is acting on an object of mass 10 kg. The acceleration produced is ___________

Force acting on a given area is called pressure.

A force of 50 N act on the object of mass 20 kg calculate the acceleration of the object in x and y direction

A block of mass 2.0 kg is pushed down an inclined plane of inclination 37^0 with a force of 20N acting parallel to the incline. It is found that the block moves on the incline with an acceleration of 10 m/s^2 . If the block started from rest, find the work done by the applied force in the first second .

A rectangular coil of 100 turns has length 5 cm and width 4 cm. it is placed with its plane parallel to a uniform magnetic field and a current of 2 A is sent through the coil. Find the magnitude of the magnetic field B, if the torque acting on the coil is 0.2 Nm^(-1).