Answer:
Explanation:
The energy of the photon must be equal to 0.1 eV, so let's convert this value into Joules first:
The energy of the photon is related to its frequency by
where h is the Planck constant and f is the frequency. Substituting,
And now we can find the wavelength of the photon, which is given by
where c is the speed of light. Substituting,
Momentum = (mass) x (speed)
10 kg-m/sec = (mass) x (1.5 m/s)
Divide each side by 1.5 m/s :
Mass = 10 kg-m/sec / 1.5 m/s = <em>(6 and 2/3) kg</em>
The correct answer is:
D. Extrusive rocks.
The explanation:
when extrusive igneous rocks form when magma reaches the Earth's surface a volcano and cools quickly. Most extrusive (volcanic) rocks have small crystals. Examples include basalt, rhyolite, andesite, and obsidian.
Parallax of the stars is created by :
B. Different locations of Earth in its orbit
Parallax refer to the position of an object (in this case, a star) that will look different if we view it from different positions
hope this helps
The effector strain of bacteria is that the bacteria would colonize on the teeth and help prevent the child from developing cavitie
