The total mass of gas which fills a meteorogical balloon is 50kg. The balloon string is tied to a post which is fixed to the earth. Find the tension in the string the volume of the balloon is 110 metre cube and density of air is 1.3 kilogram per cubic metre

Which example has gravitational potential energy? a.a horse slowing down from a run b.an apple about to fall from a tree branch c.a bicycle being pedaled down a horizontal path d.beaker sitting on the floor

Gunpowder residue is most likely to show up where on a shooters hands

The scalar triple product computes the magnitude m of the moment of a force vector f about a specified line. it is m = (r × f) · n, where r is the position vector from the line to the point of application of the force and n is a unit vector in the direction of the line. use matlab to compute the magnitude m for the case where f = [12, −5, 4] n, r = [−3, 5, 2] m, and n = [6, 5, −7].