Answer:
Percent error = 2.8
Explanation:
Given data;
Actual value = 17.9 cm
Measured value = 17.4 cm
Percent error = ?
Solution:
Formula:
Percent error = [actual value - measured value / actual value] × 100
Now we will put the values in formula:
Percent error = [17.9 cm - 17.4 cm / 17.9 cm] × 100
Percent error = [0.5 cm /17.9 cm] × 100
Percent error = 0.028 × 100
Percent error = 2.8
Answer:
2.79%
Explanation:
I clicked on 2.79% and it was correct.
B.His results gave the first clues that atoms could be created and destroyed.
C.His results gave the first experimental evidence that matter is made up of atoms.
D.His results gave the first evidence that atoms were made up of smaller particles.
Answer:
D, because he discovered electrons
Explanation:
His results gave the first evidence that atoms were made up of smaller particles.
Condensation occurs when a gas comes into contact with a cold surface and transforms into a liquid. This transition occurs because the gas particles lose energy and their intermolecular forces draw them together. An example of this is when the warm breath condenses on a cold window.
When a gas reaches a cold surface, it experiences a phase transition known as condensation. During this process, the gas particles lose energy due to the low temperature, which slows down their motion and allows intermolecular forces to draw them closer together, thus transforming the gas into a liquid.
For instance, when you breathe on a cold window, the water vapor in your breath condenses on the glass surface into tiny liquid droplets. Similarly, when high atmospheric pressure forces a gas like carbon dioxide to transition into a liquid, it's known as condensation.
Deposition is a similar process where a gas transform directly into a solid, bypassing the liquid state. For example, the formation of frost is a result of deposition where water vapor turns directly into ice crystals. However, this phenomenon is different from the situation described in your question.
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bacteria-like
B.
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The equation we need to use to solve this is: c=λν
c is the speed of light (2.998 x 10^8 m/s)
λ is the wavelength, which we're gonna solve for
ν is the frequency ( 2.4 x 10^14 Hz )
First, plug in the values we were given into the equation
2.998 x 10^8 m/s= (λ)(2.4 x 10^14 Hz)
Next, divide both sides of the equation by 2.4 x 10^14 Hz to solve for the wavelength (λ)
λ= 1.249166667 x 10^-6 m
Round to 2 significant figures
λ= 1.2 x 10^-6 m
B) melting point, boiling point
C) freezing point, boiling point
D) freezing point, condensation point
Answer:
(A) melting point, freezing point.
Explanation:
For the same substance: when matter is transitioning from solid to liquid (melting) or liquid to solid(freezing), its temperature is fixed at the melting/freezing point, which is the same temperature.
Answer:melting,freezing
Explanation: