Which will produce a magnetic field? any wire with or without a current a wire formed into a coil a wire carrying a current a wire formed into a single loop

There are two routes similar in terrain; however, one route has an incline of approximately 28 degrees, and you must decide on which route to take. what is the maximum road grade that your fully loaded ecv can climb?

The substances that are necessary for producing of certain hormones and that store and transport vitamins

Which basic property determines a colored light's placement on the spectrum of visible light? a. speed b. frequency c. amplitude d. velocity