The wavelength of a certain light source is "0.535" where 1 micrometer = 1.0 x 10^-6m. express this wavelentg in nanometers.

Solution:

The wavelength of the light source is represented by ''

Here, the wavelength of the source of light is given as 0.535

We know that 1 micro meter or 1

Thus

Also, we know that

1 nano meter or 1 nm =

Thus

Wavelength in nanometer is,

acceleration = (change in speed) / (time for the change)

change in speed = (20-120)= -100 m/s.

1.5 min = 90 sec

acceleration = -100/90 = -1.11 m/s^2.

we don't care about the 150kg or the 2,500 meters. they don't make any difference.

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float.

archimedes' principle

denser than water sinks in water.

denser than mercury would sink in it