The restoring force of the spring cancels the weight of the mass, so by Newton's second law
∑ F = F[spring] - mg = 0 ⇒ F[spring] ≈ 45.1 N
where m = 4.60 kg and g = 9.80 m/s². Then the spring constant is k such that by Hooke's law,
F[spring] = k x
where x = 0.0231 m. Then the spring constant is
k = F[spring]/x ≈ 1950 N/m
Answer:
Explanation:
mass of electron in amu = .000549
mass of electron = mass of proton
total mass of electron and proton = 2 x1.098 x 10⁻³ = 2.196 x 10⁻³ amu
1 amu = 931 x 10⁶ eV
2.196 X 10⁻³ amu = 2.196 x 931 x 10³ eV
= 2.044 X 10⁶ eV.
= 2044 X 10³ ev
So minimum energy required = 2044 x 10³ eV.
Wavelength of photon required = 12375/2044 x 10³ A
= 6.054 X 10⁻³A. =6.054 X 10⁻¹³ m
frequency of photon = 3 x 10⁸/6.054x 10⁻¹³
= .4955 x 10¹⁶Hz.
= 4.955 x 10¹⁵ Hz
Answer:
Light is a source of illumination, whether a natural one (like the sun) or an artificial one (like your lamp). Like light itself, the word can take a lot of different forms — it can be a noun, an adjective, or a verb, and it can mean "bright" or "not heavy".
Explanation:
