Ask question

Ask question

All categories

4 years ago

7

The fundamental frequency of a string fixed at both ends is 316 hz. how long does it take for a wave to travel the length of thi

s string?

1 answer:

lina2011 [118]4 years ago

8 0

yfzufsfusgsuzguugzdigidggddyi

You might be interested in

A stack of 1500 bricks covers a ground area of 2.750m by 1.350m.the average mass of bricks is 3.200kg.calculate the total force

lozanna [386]

The total force on the ground due to the bricks is 47,040 N.

<h3>Total force on the ground</h3>

The total force on the ground due to weight of the bricks is calculated as follows;

Fₙ = mg

where;

Fₙ is normal force
m is mass of the brickes
g is acceleration due to gravity

Fₙ = (1500 x 3.2) x 9.8

Fₙ = 47,040 N

Thus, the total force on the ground due to the bricks is 47,040 N.

Learn more about total force here: brainly.com/question/14361879

#SPJ1

5 0

2 years ago

Assume that Young’s modulus for a new material is known to be 2.25 × 1011 /2

Lady bird [3.3K]

Answer:

Maximum force, $F_{max} = 42 kN$

Explanation:

Maximum Stress, $\sigma_{max} = 2.1 * 10^{7} N/m^{2}$

The diameter of the material, d = 50.5 mm = 0.0505 m

The area of the material, $A = (\pi d^{2} )/4$

$A = \frac{\pi * 0.0505^{2} }{4} \\A = 0.002 m^{2}$

The formula for the maximum stress that the material can take is given by:

$\sigma_{max} = \frac{F_{max} }{A} \\2.1 * 10^7 = \frac{F_{max} }{0.002}\\F_{max} = 2.1 * 10^7 * 0.002\\F_{max} = 4.2 * 10^4 N\\F_{max} = 42 kN$

4 0

3 years ago

How are electromagnetic waves used in bar-code scanners?

Natali5045456 [20]

Answer:

A barcode reader (or barcode scanner) is an optical scanner that can read printed barcodes, decode the data contained in the barcode and send the data to a computer. Like a flatbed scanner, it consists of a light source, a lens and a light sensor translating for optical impulses into electrical signals.

Explanation:

A barcode reader (or barcode scanner) is an optical scanner that can read printed barcodes, decode the data contained in the barcode and send the data to a computer. Like a flatbed scanner, it consists of a light source, a lens and a light sensor translating for optical impulses into electrical signals.

3 0

3 years ago

The orbital radius of the Earth (the average Earth-Sun distance) is 1.496 × 1011 m. Mercury’s orbital radius is 5.79 × 1010 m an

sineoko [7]

Answer:

Earth: $t = 498.667\,s$ , Mercury: $t = 193\,s$ , Pluto: $t = 19700\,s$

Explanation:

The light travels at a constant speed of approximately $3\times 10^{8}$ meters per second. The time ( $t$ ), in seconds, required for light to travel a given distance is:

$t = \frac{x}{v_{l}}$ (1)

Where:

$x$ - Travelled distance, in meters.

$v_{l}$ - Speed of light, in meters per second.

Now, we calculate the time for light to travel to each planet:

Earth ( $v_{l} = 3\times 10^{8}\,\frac{m}{s}$ , $x = 1.496\times 10^{11}\,m$ )

$t = \frac{x}{v_{l}}$

$t = 498.667\,s$

Mercury ( $v_{l} = 3\times 10^{8}\,\frac{m}{s}$ , $x = 5.79\times 10^{10}\,m$ )

$t = \frac{x}{v_{l}}$

$t = 193\,s$

Pluto ( $v_{l} = 3\times 10^{8}\,\frac{m}{s}$ , $x = 5.91\times 10^{12}\,m$ )

$t = \frac{x}{v_{l}}$

$t = 19700\,s$

5 0

3 years ago

According to “The Cyclone,” who invented the Fourth of July?

Vilka [71]

<span>A. Pecos Bill

</span>According to “The Cyclone,” who invented the Fourth of July is PECOS BILL
NOT:
B. Alexander Hamilton
<span>C. Sam Houston </span>
<span>D. George Washington</span>

8 0

3 years ago