An infrared light detector would be most beneficial to someone who investigates a. how insects use sound to communicate. b. the colors produced by different atmospheric conditions. c. the aerodynamics of hummingbird wings. d. the wavelengths of light produced by chemical reactions.

The membrane surrounding a living cell consists of an inner and an outer wall that are separated by a small space. assume that the membrane acts like a parallel plate capacitor in which the effective charge density on the inner and outer walls has a magnitude of 7.0 × 10-6 c/m2. (a) what is the magnitude of the electric field within the cell membrane? (b) find the magnitude of the electric force that would be exerted on a potassium ion (k+; charge = +e) placed inside the membrane.

According to newtons universal law of gravitation, which would change the parh of the ball so it traces out widest curved path possible?

If 2 moles of co_2 at 2l and 500k are expanded reversibly to 20l, more work can be obtained from an adiabatic process than from an isothermal process. is the above statement true or false?