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2 years ago

11

A beach ball moving with the speed of 1.27 m/s rows of a pier and hits the water 0.75 m from the end the pier how high is the

pier above the water

1 answer:

Vera_Pavlovna [14]2 years ago

8 0

Answer:

75.8

Explanation:

because just divide 1.27 into 0.75 and there's your answer

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2 years ago

How do you know that forces are balanced when static friction acts on an object?

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3 years ago

A metallic sheet has a large number of slits, 5.0 mm wide and 20 cm apart, and is used as a diffraction grating for microwaves.

san4es73 [151]

To solve this problem it is necessary to apply the concepts related to the principle of superposition and constructive interference, that is to say everything that refers to an overlap of two or more equal frequency waves, which when interfering create a new pattern of waves of greater intensity (amplitude) whose cusp is the antinode.

Mathematically its definition can be given as:

$d sin\theta =m\lambda$

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m = Order (any integer) which represent the number of repetition of the spectrum, at this case 1 (maximum respect the wavelength)

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Therefore the smallest microwave frequency for which only the central maximum occurs is 1.5Ghz

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