Which of the following describe an electrical motor? check all that apply() changes electrical energy to mechanical energy.() can be powered by a hand crank.() uses the interaction between a spinning coil of wire and magnet.() is found in many appliances with moving parts like, a vacuum cleaner or a blender. don't answer unless you know the answer, .

Physics make-up packetname_cle14. an observer hears a sound with a frequency of 400 hz. if the speed of sound is 340 m/s,what is the wavelength of the sound? a. 0.85 mb. 1.2 mc. 2.75 m13.6 m15. as sound travels from steel into air, its speed decreases. if the frequency of the wavedoesn't change, what happens to its wavelength? a. it increases(b) it decreasesc. it remains the samed. there is not enough information given

When does your body conduct current more readily?

An object's buoyant force and weight mean the same thing.a. trueb. false