A1m length of wire carrying a current of 7a lies on a horizontal table with a rectangular top of dimensions 0.6m x 0.8m. the ends of the wire are attached to opposite ends of a diagonal of the rectangle. a vertical magnetic field of 0.it is present. what magnetic force acts on this segment of wire? a) 0.7n b) 0.98n c) 7n d) zero

Ablock of steel has a density of 0.29lbs per cubic inch. if the block has dimensions of 1 inch by 1 inch by 3 inches, what is its weight? a. 0.29lbs b. 0.58lbs c. 0.87lbs d. 1lbs

Suppose that two tanks, 1 and 2, each with a large opening at the top, contain different liquids. a small hole is made in the side of each tank at the same depth 1.57 m below the liquid surface, but the hole in tank 2 has 2.49 times the cross-sectional area of the hole in tank 1. (a) what is the ratio ρ1/ρ2 of the densities of the liquids if the mass flow rate is the same for the two holes? (b) what is the ratio rv1/rv2 of the volume flow rates from the two tanks? (c) at one instant, the liquid in tank 1 is 14.9 cm above the hole. if the tanks are to have equal volume flow rates, what height above the hole must the liquid in tank 2 be just then?

Crowbar of 5 metre is used to lift an object of 800 metre if the effort arm is 200cm calculate the force applied