* Numericals A force (in Newton) expressed in vector notation as
F = 2i + j - 3k is applied on a body so that the displacement produced in meter is given by D = i -2j -3k
Express the
result and nature of the work done.

Amarble, a bowling ball, a basketball, and a baseball are rolling across the floor at 10 m/s. which one has the greatest kinetic energy? the marble the bowling ball the basketball the baseball

What are the north and south poles of a solenoid change with?

Ahot-air balloon takes off from the ground traveling vertically with a constant upward acceleration of magnitude g/4. after time interval δt, a crew member releases a ballast sandbag from the basket attached to the balloon. how many seconds does it take the sandbag to reach the ground? (express your answer in terms of δt)