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Physical changes do not change what a substance is, whereas a chemical change results in a new substance being formed, so they do change what a substance is.
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Answer:
Lines of credit are unsecured loans. That means the bank is taking a huge risk. The bank has to be certain the borrower has a credit history that indicates (s)he will pay back the loan
Answer:
350 N/m
Explanation:
If we are assuming the stretch does not exceed the elastic range of the material, then by Hooke's law the spring constant of the cord is simply the ratio between the force 70N acting on the cord to stretch 20cm or 0.2m
k = 70 / 0.2 = 350 N/m
The spring constant is 350 N/m
The part that moves are called anti-nodes. The stationary pars are nodes
Answer:
Answer is B.
Because the wavelength of infrared is shorter than microwave radiation
