Classify each characteristic of sound waves. Intensity:
Loudness:
Frequency:
Pitch:
objective
subjective
neither

What is a good example of instantaneous speed

Consider a 1000 w iron whose base plate is made of 0.5 cm thick aluminum alloy 2024-t6 (ρ = 2770 kg/m3 and cp = 875 j/kg°c). the base plate has a surface area of 0.03 m2. initially, the iron is in thermal equilibrium with the ambient air at 22°c. assuming 90% of the heat generated in the resistance wires is transferred to the plate, determine the minimum time needed for the plate temperature to reach 200°c.

70 give a real life example showing how sensory neurons work with the motor neurons