This is the pond behind Serge's house. There are lots of catfish swimming in this pond. Trees ring the pond and rushes and irises live at the pond's edge. The bottom of the pond is sandy and Serge likes to pick up flat rocks from the shallow water and skim them across the top of the water. This summer, Serge has seen lots of dragon flies and mosquitoes at the pond also. All the catfish that live in the pond behind Serge's house make up a of catfish.

a. community
b. family
c. habitat
d. population

In the sport of parasailing, a person is attached to a rope being pulled by a boat while hanging from a parachute-like sail. a rider is towed at a constant speed by a rope that is at an angle of 15 ∘ from horizontal. the tension in the rope is 1900 n. the force of the sail on the rider is 30∘ from horizontal. what is the weight of the rider? express your answer with the appropriate units.

Electroplating is a way to coat a complex metal object with a very thin (and hence inexpensive) layer of a precious metal, such as silver or gold. in essence the metal object is made the cathode of an electrolytic cell in which the precious metal cations are dissolved in aqueous solution. suppose a current of 480.ma is passed through an electroplating cell with an aqueous solution of agno3 in the cathode compartment for 46.0 seconds. calculate the mass of pure silver deposited on a metal object made into the cathode of the cell. round your answer to 3 significant digits. also, be sure your answer contains a unit symbol. ×10μ

Acertain radio station broadcasts radio waves that have a wavelength of 298cm what is its broadcast frequency?