What happens to a substance when it dissolves

Physics

1 answer:

11Alexandr11 [23.1K]4 years ago

4 0

Answer:

When a substance dissolves, the solute breaks up from larger crystal molecules into much smaller groups or individual molecules.

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What is the energy of a photon of ultraviolet radiation with a frequency of 4.4 × 1015 Hz? Planck’s constant is 6.63 × 10–34

Hunter-Best [27]

Answer:

$2.9\cdot 10^{-18} J$

Explanation:

The energy of a photon is given by:

$E=hf$

where

h is the Planck constant

f is the frequency of the photon

In this problem, we have:

$h = 6.63\cdot 10^{-34} Js$

$f=4.4\cdot 10^{15} Hz$ is the frequency of the photon

Substituting into the equation, we find:

$E=(6.63\cdot 10^{-34} Js)(4.4\cdot 10^{15} Hz)=2.9\cdot 10^{-18} J$

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A physical pendulum consists of a meter stick that is pivoted at a small hole drilled through the stick a distance x from the 50

Rom4ik [11]

Answer:

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