30 the city is considering a program to spray insecticide to reduce the number of mosquitoes in the area. before they do, they want to find out if there are any health risks associated with this type of mass spraying. which group would be the best to advise them on this topic? a. the company that manufactures the insecticide b. the local pest control companies who would be hired to spray c. the government agency that regulates these types of chemicals d. a group of concerned citizens who oppose the program

As you are trying to move a heavy box of mass m, you realize that it is too heavy for you to lift by yourself. there is no one around to , so you attach an ideal pulley to the box and a massless rope to the ceiling, which you wrap around the pulley. you pull up on the rope to lift the box. use g for the magnitude of the acceleration due to gravity and neglect friction forces. once you have pulled hard enough to start the box moving upward, what is the magnitude f of the upward force you must apply to the rope to start raising the box with constant velocity? express the magnitude of the force in terms of m, the mass of the box.

A2.0 μf capacitor and a 4.0 μf capacitor are connected in series across a 0.827-kv potential. the charged capacitors are then disconnected from the source and connected to each other with terminals of like sign together. find the voltage across each capacitor.

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