All categories

3 years ago

What is the wave speed of a wave that has a frequency of 25 Hz and a wavelength of 0.80 m?

Mathematics

2 answers:

diamong [38]3 years ago

8 0

Here is your answer

We know that

Velocity = Frequency × Wavelength (all in SI units)

V= 25×0.80

V= 20m/s

HOPE IT IS USEFUL

tatuchka [14]3 years ago

3 0

Answer:

Speed = 20 m/s

Step-by-step explanation:

The formula to find the speed of a wave is found by

Speed = Wavelength x Frequency where the frequency is in HZ and the wavelength is in meters

Speed = .80*25

Speed = 20 m/s

You might be interested in

Which value of x from the set {5, 6, 7, 8} makes this equation true? 3x = 24

Tju [1.3M]

Answer:

Value x = 8 make the equation true .

Step-by-step explanation:

Given : 3x = 24.

To find : Which value of x from the set {5, 6, 7, 8} makes this equation true?

Solution : We have given 3x = 24.

The equations are true when the Left hand side and right hand side of the equation are equal.

Then,

For x = 8 .

3 ( 8) = 24

24 = 24 .

Hence,

Left hand side = Right hand side.

Therefore, Value x = 8 make the equation true .

3 0

3 years ago

I’m not sure about this question can someone help me.

Alisiya [41]

Step-by-step explanation:

$tan \: 48 \degree = \frac{x}{61} \\ \\ 1.11 = \frac{x}{61} \\ \\ x = 1.11 \times 61 \\\\ x = 67.7 feet\:$

RP = 67.7 feet

3 0

3 years ago

How? (2x^2 - 3x - 4)(x + 7)<br>

lidiya [134]

Answer:

$2 {x}^{3} + 11{x}^{2} - 25x - 28$

Step-by-step explanation:

Using foil method, Multiply the first term

$2 {x}^{2} \times x = 2 {x}^{3}$

Next, Multiply the Outer term in each parenthesis. (2x^2 and 7

$2 {x}^{2} \times 7 = 14 {x}^{2}$

$2 {x}^{2} \times 7 = 14 {x}^{2} \: \: \: 3x \times - x = - 3x$

Then, Multiply the Inner Terms (-3x,-4,7) in each parenthesis

$- 3x \times 7 = - 21x$

$- 4 \times x = - 4x$

Then multiply the last term (-4 and 7).

$- 4 \times 7 = - 28$

Combine it you have

$2 {x}^{3} + 14 {x}^{2} - 3 {x}^{2} - 21x - 4x - 28$

which simplify to

$2 {x}^{3} + 11 {x}^{2} - 25x - 28$

3 0

3 years ago

Need help am being timed pls

goldenfox [79]

What are the answer options?

6 0

2 years ago

I need help with this can you show me how to work it out pls

JulsSmile [24]

Answer:

Answer is in the pic

Step-by-step explanation:

A translation is just a movement of the figure so in this case you just add 3 to the x part of the coordinate.

so originally k (-2,5) m (-3,1) l (1,1)

add 3 to x so

k (1,5) m (0,1) l (4,1)

3 0

3 years ago