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2 years ago

A series of evenly timed pulses create a wave that can be described as a _______ wave.

Physics

1 answer:

son4ous [18]2 years ago

8 0

Answer:

Periodic

Explanation:

A periodic (or repetitive) wave has continuously repeating pattern with characteristics such as amplitude, wavelength and frequency. In a periodic wave, a series of pulses that are evenly timed would be created. In other words, the wave pattern in a periodic wave repeats at regular intervals.

An example of a periodic wave is the sound from the strings of a violin.`

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A drunken sailor stumbles 580 meters north, 530 meters northeast, then 480 meters northwest. What is the total displacement and

kvv77 [185]

Answer:

(a) 1294.66 m

(b) 88.44°

Explanation:

d1 = 580 m North

d2 = 530 m North east

d3 = 480 m North west

(a) Write the displacements in vector forms

$\overrightarrow{d_{1}}=580\widehat{j}$

$\overrightarrow{d_{2}}=530\left ( Cos45\widehat{i}+Sin45\widehat{j} \right )$

$\overrightarrow{d_{2}}=374.77\widehat{i}+374.77\widehat{j}$

$\overrightarrow{d_{3}}=480\left ( - Cos45\widehat{i}+Sin45\widehat{j} \right )$

$\overrightarrow{d_{3}}=-339.41\widehat{i}+339.41widehat{j}$

The resultant displacement is given by

$\overrightarrow{d}\overrightarrow{d_{1}}+\overrightarrow{d_{2}}+\overrightarrow{d_{3}}$

$\overrightarrow{d}=\left ( 374.77-339.41 \right )\widehat{i}+\left ( 580+374.77+339.41 \right )\widehat{j}$

$\overrightarrow{d}=35.36\widehat{i}+1294.18\widehat{j}$

magnitude of the displacement

$d ={\sqrt{35.36^{2}+1294.18^{2}}}=1294.66 m$

d = 1294.66 m

(b) Let θ be the angle from + X axis direction in counter clockwise

$tan\theta =\frac{1294.18}{35.36}=36.6$

θ = 88.44°

4 0

2 years ago

C. length and mass

Eva8 [605]

Think it would be c, 5.1 g

7 0

3 years ago

Read 2 more answers

What two simple machines are found in a bike?

omeli [17]

I think it's a pulley and a lever.

3 0

3 years ago

Martine also has an eraser.it has a mass of 3g,and a volume if 1cm3.what is its density

shtirl [24]

Answer:

3g/cm³

Explanation:

Use the formula:

density = mass ÷ volume

Substitute (plug in) the values:

density = 3 ÷ 1 = 3g/cm³

4 0

2 years ago

Which is greater the attraction of the earth for 1 kg of aluminum or aluminum or attraction of 1kg of aluminum for the earth?

OleMash [197]

Those forces are exactly equal.

Gravity always works as a pair of EQUAL forces ... one in each direction
between two masses. Your weight on the Earth is exactly the same as
the Earth's weight on you.

8 0

3 years ago