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alexira [117]
3 years ago
10

a brick of mass of 1 kg and density 2.5gm/cm³ is immersed in water how much mass of water is displace by it.​

Physics
1 answer:
Daniel [21]3 years ago
6 0

Answer:

1 kg

Explanation:

.suebebdindnwb....

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Physical change and I think you mean soaked.
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4 years ago
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A searchlight is 210 ft from a straight wall. As the beam moves along the​ wall, the angle between the beam and the perpendicula
Ivenika [448]

Answer:

The length of the beam increasing is 9.64 ft/s.

Explanation:

Given that,

Height = 210 ft

Distance =290 ft

According to figure,

We need to calculate the angle

\cos\theta=\dfrac{210}{x}....(I)

Put the value of x in the equation

\cos\theta=\dfrac{210}{290}

\cos\theta=\dfrac{21}{29}=0.72

Now, \sin\theta=\dfrac{20}{29}

On differentiate of equation (I)

-\sin\theta\dfrac{d\theta}{dt}=-\dfrac{-210}{x^2}\dfrac{dx}{dt}

\sin\theta=\dfrac{210}{x^2}\dfrac{dx}{dt}

Put the value in the equation

\sin\dfrac{20}{29}\times2.0=\dfrac{210}{(290)^2}\dfrac{dx}{dt}

\dfrac{dx}{dt}=\sin\dfrac{20}{29}\times2.0\times\dfrac{290^2}{210}

\dfrac{dx}{dt}=9.64\ ft/s

Hence, The length of the beam increasing is 9.64 ft/s.

4 0
3 years ago
Why are these waves called out phase waves?
ss7ja [257]

Answer:

^ What he said

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HELP PLEASE!! An illustration of a pendulum at 3 positions of a pendulum. The equilibrium position is labeled B. The other two p
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Answer:

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MrMuchimi

Answer:

Three types of electromagnetic waves, used to transmit various information

Explanation:

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