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Assoli18 [71]
3 years ago
15

5. A sunbather at the beach absorbs the thermal energy from the sun through

Physics
1 answer:
Brums [2.3K]3 years ago
8 0
Answer: B, Radiation

Explanation: idk just got that out from Mr.Google
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The ability to clearly see objects at a distance but not close up is properly called ________. The ability to clearly see object
melamori03 [73]

Answer:

Hyperopia

Explanation:

     In hyperopia ,people face difficulties  to see close up object , but can see object easily which are at a distance.

The main reason of hyperopia is our eyeball.When our eyeball become too  short , then light focus behind the retina. Sowe will face problem to see near object but we can see distance object easily. Hyperopia is the opposite of nearsightedness. Hyperopia can be corrected by using contact lenses.

5 0
3 years ago
A satellite orbiting the moon very near the surface has a period of110 min. What is free-fall acceleration on the surface of the
Norma-Jean [14]

Answer:

1.54 m/s²

Explanation:

The free-fall acceleration is calculated as

g = w²r

Where w is the angular velocity of the satellite and r is the radius of the moon.

The angular velocity can be calculated as

w=\frac{2\pi}{T}

Where T is the period, so

T = 110 min = 110 x 60 s = 6600 s

Then,

w=\frac{2\pi}{6600\text{ s}}=9.52\times10^{-4}\text{ rad/s}

Finally, the radius of the moon is r = 1.7 x 10⁶ m, so the free-fall acceleration is

\begin{gathered} g=w^2r \\ g=(9.52\times10^{-4})^2(1.7\times10^6) \\ g=1.54\text{ m/s}^2 \end{gathered}

Therefore, the answer is 1.54 m/s²

5 0
1 year ago
Definition of measurements?​
skad [1K]

Answer:

Measurement is a comparison of an unknown quantity with a known fixed quantity of the same kind. The value obtained on measuring a quantity is called its magnitude. The magnitude of a quantity is expressed as numbers in its unit.

8 0
3 years ago
A Carnot engine receives 250 kJ·s−1 of heat from a heat-source reservoir at 525°C and rejects heat to a heat-sink reservoir at 5
earnstyle [38]

Answer:

W = -148.8 kJ/s

Qc= -101.2 kJ/s

Explanation:

<u>note: </u>

<u> Solution is attached in word form due to error in mathematical equation.  please find the attachment </u>

5 0
3 years ago
Which of the following best describes reverberations
BigorU [14]

Reverberation, in psychoacoustics and acoustics, is a persistence of sound after the sound is produced.[1] A reverberation, or reverb, is created when a sound or signal is reflected causing a large number of reflections to build up and then decay as the sound is absorbed by the surfaces of objects in the space – which could include furniture, people, and air.[2] This is most noticeable when the sound source stops but the reflections continue, decreasing in amplitude, until they reach zero amplitude.

8 0
3 years ago
Read 2 more answers
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