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3 years ago

A certain microwave has a

Physics

1 answer:

Tatiana [17]3 years ago

5 0

Answer:

$9.375\times 10^{9} Hz$

Explanation:

Frequency is mathematically defined as the quotient of speed divided by wavelength.

$Frequency= \frac {v}{W}$

where

v-is the speed of light

-w is wavelength.

Given the speed of the wave as $V=300000000 \ m/s$ and the wavelength $\lambda= 0.032\ m$ , we substitute these values in the Frequency function to solve for frequency:

$Frequency=\frac {300000000}{0.032}=9375000000 Hz=9.375\times 10^{9} Hz$

Hence, the wave's frequency is $9.375\times 10^9\ Hz$

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Answer:

Answer is in the following attachment.

Explanation:

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3 years ago

A 10 kg cart is rolling across a parking lot with a velocity of .5 m/s. What is its momentum?

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Hello!

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2 years ago

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3 years ago

A worker lifts a 20.0-kg bucket of concrete from the ground up to the top of a 25.0-m tall building. The bucket is initially at

yuradex [85]

Answer:

Minimum work = 5060 J

Explanation:

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Let 'W' be the work done by the worker in lifting the bucket.

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Therefore, the work done by the worker in lifting the bucket is given as:

$W=\Delta E\\\\W=mgh+\frac{1}{2}m(v^2-u^2)$

Now, plug in the values given and solve for 'W'. This gives,

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1195 or either 33.2 or 2010

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3 years ago