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photoshop1234 [79]
3 years ago
11

An object is falling downward at a rate of 25 m/s. Two seconds later, what is its acceleration?

Physics
1 answer:
zhenek [66]3 years ago
6 0

acceleration times time falling

25*2

50 m*s^-1

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What frequency is received by a person watching an oncoming ambulance moving at 110 km/h and emitting a steady 800-Hz sound from
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To develop this problem we will apply the concepts related to the Doppler effect. The frequency of sound perceive by observer changes from source emitting the sound. The frequency received by observer f_{obs} is more than the frequency emitted by the source. The expression to find the frequency received by the person is,

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8 0
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he Hobbits are building a watchtower so they can prepare to battle in case trolls decide to attack them. One Hobbit will always
joja [24]

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Therefore, T(V(m)) will give the time the Hobbits have to prepare for the troll attack as a function of the height, m, of the watchtower.

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We can simplify this as follows:

=50m/80

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