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Pani-rosa [81]
3 years ago
9

Can u expert Anwser this I Would Like to Help U but Please Anwser This

Physics
1 answer:
Roman55 [17]3 years ago
3 0
Streamline
Effect
Drag
Parachutes
Surface area
Friction
Air
Water
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The energy of a photon of light is ________ proportional to its frequency and ________ proportional to its wavelength.
nirvana33 [79]
The energy of a photon of light is directly proportional to its frequency and <span>inversely</span> proportional to its wavelength.
7 0
3 years ago
Ann puts a beaker on the scale which shows the mass to be 1.65kg. The actual mass was 1.72 kg. what was the percent error in Ann
mojhsa [17]

Measured reading is 1.65 kg

actual reading was 1.72 kg

error in the reading is 1.72 - 1.65 = 0.07 kg

Now percentage error is given as

error = \frac{error}{true reading}*100

error = \frac{0.07}{1.72}*100

error = 4.1

<em>so this is -4.1% error as the measured reading is less than the actual value</em>

8 0
3 years ago
The first law of thermodynamics states that ΔE= Q− W . Is this also a statement of the principle of conservation of energy? Yes,
ozzi

Answer:

Yes, the heat that flows into the system is used to change the internal energy of the gas and becomes work done by the piston.

Explanation:

First law of thermodynamics known as Law of Conservation of Energy, states that energy can neither be created nor destroyed; energy can only be transferred or changed from one form to another.

The first law of thermodynamics states that the change in internal energy of a system equals the net heat transfer into the system minus the net work done by the system. In equation form, the first law of thermodynamics.

This is the first law of thermodynamics

ΔE= Q− W

ΔE= change internal energy of the system.

Q= heat transfer into the system

And

W= work done by the system.

Rewriting the equation

ΔE= Q− W

Q=ΔE +W

Show that the heat flowing l into the system is transferred to the internal energy of the system and the work done by the piston

So the third option is correct

3 0
2 years ago
17. What is the speed of a race horse that runs<br> 1500 m in 125 s?
Hoochie [10]

Answer:

12 miles per second

Explanation:

6 0
3 years ago
Read 2 more answers
How do you find total displacement
Monica [59]

That's actually a lot easier than finding total <u><em>distance.</em></u>

To find displacement, you only have to know where the trip started from, and where it ended.   It doesn't matter what route was followed to actually travel from the start to the finish.  The displacement is the straight-line distance and direction between those two points.

5 0
3 years ago
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