Answer:
A
Step-by-step explanation:
We can substract the wavength of the violet light to the wavelength of the red light:
(6.5 x 10^-7 m) - (4.0 x 10^-7 m) = 2.5 x 10^-7 m
it's 12.56
Step-by-step explanation:
=2×22/7×2
=2×22×2/7
=88/7
1=2.56
Step-by-step explanation:
4500 * 40÷100 = 1800
4500 + 1800 = 6300
Answer:
The value of the exponent of the base 10 for this product is -2.
Step-by-step explanation:

Now, in order to represent this number in scientific notation, we need to reduce the coefficient 18.166 to a coefficient larger or equal to 1 and smaller strictly than 10, by using division or multiplications by powers of 10. In order to reduce it to 1.8166, we need to divide the original 18.166 by ten so we do the following in order not to change the given number (multiply and divide by ten at the same time):
