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2 years ago

A car starts from rest and speeds up to 30 m/s in a total of 6 s.

Physics

2 answers:

sveta [45]2 years ago

4 0

5 m/s
30 divided by 6 is 5

tester [92]2 years ago

3 0

5 m/s^2, acceleration is always in m/s^2

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3 hours into minutes

otez555 [7]

Answer:

180

60 minutes in a hour

60x3 is 180minutes

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Subatomic particles cannot be broken down any further

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2 years ago

I don’t understand I need help asap

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2 years ago

Iron + Hydrochloric acid --> ?

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<h3>Hydrochloric Acid- HCl</h3>

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2 years ago

Read 2 more answers

A microphone is attached to a spring that is suspended from the ceiling, as the drawing indicates. Directly below on the floor i

svet-max [94.6K]

Answer:

$0.261\ \text{m}$

Explanation:

$\Delta f$ = Change in frequency = 2.1 Hz

$f$ = Frequency of source of sound = 440 Hz

$v_m$ = Maximum of the microphone

$v$ = Speed of sound = 343 m/s

$T$ = Time period = 2 s

We have the relation

$\Delta f=2f\dfrac{v_m}{v}\\\Rightarrow v_m=\dfrac{\Delta fv}{2f}\\\Rightarrow v_m=\dfrac{2.1\times 343}{2\times 440}\\\Rightarrow v_m=0.8185\ \text{m/s}$

Amplitude is given by

$A=\dfrac{v_m T}{2\pi}\\\Rightarrow A=\dfrac{0.8185\times 2}{2\pi}\\\Rightarrow A=0.261\ \text{m}$

The amplitude of the simple harmonic motion is $0.261\ \text{m}$ .

4 0

2 years ago