Answer:
1.51×10^58 moles of photons
Explanation:
n = E/hf
E is total energy = 1×10^44 J
h is Planck's constant = 6.634×10^-34 Js/mol
f is frequency of radiation = 1×10^19 Hz (1×10^19 s^-1)
n = 1×10^44/(6.634×10^-34 × 1×10^19) = 1×10^44/6.634×10^-15 = 1.51×10^58 moles of photons
<span>Using ohm’s law, I = V/R. The voltage given is
45 and the resistance is 10 ohms. Substituting the given values in our
equation. We have, I = 45 / 10. Simplify, I = 4.5 amps. The total current in
the circuit is 4.5 amperes </span>
Hello:
First, <u>the normal force</u> in y axis:
∑Fy = 0
∑Fy = N - Fy
∑Fy = N - 20 N * sen 37°
∑Fy = N = 12,87 N
Formula:
R = ma
F - F' = ma
F - (μN) = ma
20 N - (0.2 * 12,87 N) = 3 kg * a
20 N - 2.574 N = 3 kg * a
17,426 N / 3 kg = a
a = 5,8 m/s²
most likely A, because rock doesnt just appear, it takes a while to form, therefore the rock layers could have taken thousands of years to form with fish dying in between