The diagram below shows the wavelengths and frequencies for the various regions of the electromagnetic spectrum. Based on the visible light spectrum, which of the following has the longest wavelength?

Aregion of space in which a measurable gravitational force is indicated by the force exerted on a test mass is called

Asmall 21 kilogram canoe is floating downriver at a speed of 1 m/s. what is the canoe's kinetic energy?

Africtionless piston-cylinder contains 50 l of saturated liquid r-134a. the piston has a mass and an area resulting in an applied pressure of 500 kpa on the refrigerant. the refrigerant is now heated until its temperature rises to 70∘c. calculate the work (in kj) done during this process.