Karen smokes two packs of cigarettes a day. however, she is aware that smoking is harmful to her health; therefore, she holds two conflicting or dissonant thoughts. if karen were to reduce her cognitive dissonance by changing her behavior, she might

An insulated 40 ft^3 rigid tank contains air at 50 psia and 120°f. a valve connected to the tank is now opened, and air is allowed to escape until the pressure inside drops to 25 psia. the air temperature during this process is kept constant by an electric resistance heater placed in the tank. determine the electrical work done during this process.

This is the number of complete movements of a wave per second.

An object dropped from cliff falls with a constant acceleration of 10 metre per second square find its speed of two seconds after it was dropped