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kow [346]
3 years ago
13

Find your average speed if you run 50m in 10s

Physics
2 answers:
attashe74 [19]3 years ago
8 0

Average speed = (distance covered) / (time to cover the distance)

Average speed = (50  m) / (10 s)

Average speed = 50/10  m/s

Average speed = 5 m/s

Anastasy [175]3 years ago
6 0
50m divided by 10s equals 5m/s.
You're welcome.
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In a nuclear power plant, energy is released from the nuclei of atoms. The correct option among all the options given in the question is the first option. Huge amount of thermal energy is released by the breaking of the uranium atoms. This energy is used for turning a turbine that produces electricity. It is a very clean method of producing electricity. 
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An unbalanced force gives a 2.00 kg mass an acceleration of 5.00 m/s? What is the force applied to the object?​
valentinak56 [21]

Answer:

10N

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Equation: ΣF = ma

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2 years ago
During the first 50 s a truck traveled at constant speed of 25 m/s. Find the distance that it is traveled.
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6 0
3 years ago
Potential difference is measured in which units?<br> volts<br> amps<br> currents<br> watts
viktelen [127]
It is Volt
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A vacuum cleaner produces sound with a measured sound level of 75.0 dB. (a) What is the intensity of this sound in W/m2? W/m2 (b
jonny [76]

Answer:

Part a)

I = 3.16 \times 10^{-5} W/m^2

Part b)

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Explanation:

Part a)

Level of sound = 75 dB

now we know that

L = 10 Log\frac{I}{I_0}

here we know that

I_0 = 10^{-12} W/m^2

now we have

75 = 10 Log(\frac{I}{10^{-12}})

I = 3.16 \times 10^{-5} W/m^2

Part b)

Intensity of sound wave is given as

I = \frac{1}{2}\rho A^2\omega^2 c

here we know that

A = \frac{P_o}{Bk}

so we have

I = \frac{1}{2}\rho(\frac{P_o}{Bk})^2\omega^2 c

I = \frac{1}{2}\rho P_o^2 \frac{c^3}{B^2}

now we know

\rho = 1.2 kg/m^3

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P_o = 0.162 Pa

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