A geologist is studying rock layers in an old river bed, and he finds a fossil of a fish and a horsetail rush in the same rock layer. According to the law of faunal and floral succession, the geologist can assume that the rock containing the fossils may date back as far as the <span>Devonian period</span>.
According to Newton's second law of motion, the force of the object applied to accelerate is equal to the mass of the object multiplied by the acceleration. However in reality, air friction are still considered. In this case, if the density of air is 0, hence vacuum and air is negligible, then mass and radius is proportional to the acceleration.
Answer: The amplitude is 0. (assuming that the amplitude ot both initial waves is the same)
Explanation:
When two monochromatic light waves of the same wavelength and same amplitude undergo destructive interference, means that the peak of one of the waves coincides with the trough of the other, so the waves "cancel" each other in that point in space.
Then if two light waves undergo destructive interference, the amplitude of the resultant wave in that particular point is 0.
Explanation :
The resistance of the flashlight is 2.4 ohms
The current flowing in the circuit is 2.5 A
The Ohm's law gives the relation between the following quantities i.e.
Current
voltage
and resistance
Mathematically, Ohm's law can be written as :
V =I R
The voltage applied by the batteries is 6 volts.
Hence, this is the required solution.
There are two possible answers:
<span>- it can move out to a higher electron shell
- </span><span> it can stay in its original shell
</span><span>
In fact, sunlight consists of photons. When sunlight hits an electron, the electron can absorbs a photon, so it gains energy: as a result, the electron can move to a higher electron shell, which corresponds to a high energy level in the atom, if the energy given by the photon is at least equal to the energy difference between the two levels. However, if the photon energy is not large enough, the electron will stay in the same shell.</span>