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3 years ago

11

2.A chef leaves a copper spoon, a wooden spoon, and a steel spoon in a pot of boiling soup for several minutes. Which spoon shou

ld the chef grab with his bare hand to stir the soup?
A. The copper spoon

B. The wooden spoon

C. The steel spoon

D. The three spoons will be equally hot.

2 answers:

meriva3 years ago

8 0

Answer:

The wooden spoon.

Explanation:

The wooden spoon wont be as hot as a metal spoon its logic and a correct answer.

<em>Y o u ‘ r e W e l c o m e . . . .</em>

Shkiper50 [21]3 years ago

5 0

Answer:

Option B

Explanation:

The correct answer is Option B

After leaving the spoon of copper , steel and wooden in the soup for several minute chef can grab Wooden spoon with bare hand.

Wooden material are insulator of heat means heat does not transfer through the wooden material.

where as heat transfer take place in steel as well as copper and chef will not be able to lift the spoon bare hand.

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A cellist tunes the C string of her instrument to a fundamental frequency of 65.4 Hz. The vibrating portion of the string is 0.5

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Answer:

a

$\lambda = 1.18 \ m$

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Explanation:

From the question we are told that

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Generally the wavelength is mathematically represented as

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=> $\lambda = 2 * 0.590$

=> $\lambda = 1.18 \ m$

Generally the wave speed is

$v = \lambda * f$

=> $v = 1.18 * 65.4$

=> $v = 77.172 \ m/s$

Generally the tension on the wire is mathematically represented as

$T = v^2 * \frac{ m }{L }$

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On a highway, a car is driven 80. kilometers

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The average speed of the car for the entire trip can be calculate by using:

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while the total time taken is:

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Which word describes the maximum a point moves from its rest position when a wave passes?

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Answer:

Amplitude.

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In Science, there are two (2) types of wave and these include;

I. Electromagnetic waves: it doesn't require a medium for its propagation and as such can travel through an empty space or vacuum. An example of an electromagnetic wave is light.

II. Mechanical waves: it requires a medium for its propagation and as such can't travel through an empty space or vacuum. An example of a mechanical wave is sound.

An amplitude can be defined as a waveform that's measured from the center line (its origin or equilibrium position) to the bottom of a trough or top of a crest.

Hence, an amplitude is a word that describes the maximum displacement a point moves from its rest position when a wave passes.

On a graph, the vertical axis (y-axis) is the amplitude of a waveform and this simply means that, it's measured vertically.

Mathematically, the amplitude of a wave is given by the formula;

x = Asin(ωt + ϕ)

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