You have a two-wheel trailer that you pull behind your atv. two children with a combined mass of 76.2 kg hop on board for a ride through the woods and the springs (one for each wheel) each compress by 6.17 cm. when you pull the trailer over a tree root in the trail, it oscillates with a period of 2.09 s. determine the following. (a) force constant of the springs? n/m

(b) mass of the trailer? kg

(c) frequency of the oscillation? hz

(d) time it takes for the trailer to bounce up and down 10 times? s

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?

Which of the following is not a transverse wave? a) soundb) lightc) radiod) all of thesee) none of these

Each neuron shown in this figure innervates a group of muscle fibers. what is the term for a group of muscle fibers innervated by a single neuron?