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Nat2105 [25]
3 years ago
11

PLZ HELP!!!!

Physics
2 answers:
Nitella [24]3 years ago
6 0
B, the pitch is higher because the sound waves are compressed by the vehicle as it moves towards the observer.
noname [10]3 years ago
4 0
I believe the answer would be B) ...... sorry if i'm wrong
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A 15.7-g aluminum block is warmed to 53.2 °c and plunged into an insulated beaker containing 32.5 g of water initially at 24.5 °
ipn [44]

The equilibrium temperature of aluminium and water is 33.2°C

We know that specific heat of aluminium is 0.9 J/gm-K, and that of water is 1 J/gm-K

Now we can calculate the equilibrium temperature

(mc∆T)_aluminium=(mc∆T)_water

15.7*0.9*(53.2-T)=32.5*1*(T-24.5)

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The solution for this problem is:

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At what rate does gravity cause objects to accelerate at sea level on earth
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The statements below are all true. Some of them represent important reasons why the giant impact hypothesis for the Moon’s forma
Molodets [167]

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the order of importance must be     b e a f c

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Modern theories indicate that the moon was formed by the collision of a bad plant with the Earth during its initial cooling period, due to which part of the earth's material was volatilized and as a ring of remains that eventually consolidated in Moon.

Based on the aforementioned, let's analyze the statements in order of importance

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Therefore, the order of importance must be

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5 0
4 years ago
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