All categories

3 years ago

Sound travels Faster through _____________ mediums.

Physics

2 answers:

Anon25 [30]3 years ago

7 0

I think it’s A sounds travels faster through Denser mediums

Maru [420]3 years ago

3 0

Answer:

I know for sure that it's either A or B have a great day sorry I don't know which one completely

You might be interested in

A Cat is on a balcony floor (90cm below the railing), keenly eyeing a butterfly hovering 60 cm above the railing. With what spee

GenaCL600 [577]

We will have the following:

First, the equation to use is the following:

$d=v_ot+\frac{1}{2}at^2$

Now, we transform the total distance the cat would need to travel:

$90\operatorname{cm}+60\operatorname{cm}=150\operatorname{cm}\cdot\frac{1m}{100\operatorname{cm}}=1.5m$

So, the cat would need to travel 1.5 meters. ("d" in the equation).

Now, using the speed given we determine the time it would take the cat to traverse the 1.5 meters:

$t=\frac{1.5m\cdot1s}{0.45m}\Rightarrow t=\frac{10}{3}\Rightarrow t=3.333\ldots$

So, the time it would take the cat to traverse the distance will be approximately 3.33 seconds.

Now, we know that the acceleration will be given by Earth's gravity, so:

$1.5m=v_0(\frac{10}{3}s)+\frac{1}{2}(-\frac{9.8m}{s^2})(\frac{10}{3}s)^2\Rightarrow1.5m=v_0(\frac{10}{3}s)+(-\frac{490}{9}m)$ $\Rightarrow\frac{1007}{18}m=v_0(\frac{10}{3}s)\Rightarrow v_0=\frac{1007}{60}\frac{m}{s}\Rightarrow v_0=16.78333\ldots$

So, the initial vvelocity the cat must leave the floor in order to arrive at the butterfly with the optimum pouncing speed of 0.45 m/s is approximately 16.78 m/s or exactly 1007/60 m/s.

5 0

2 years ago

The question ask:

abruzzese [7]

Answer:

$\theta=28.07^{\circ}$

Explanation:

Speed of van, v = 28 m/s

Radius of unbanked curve, r = 150 m

Let $\theta$ is the angle with the vertical. In case of banking of road,

$T\ cos\theta=mg$ .............(1)

And

$T\ sin\theta=\dfrac{mv^2}{r}$ ..........(2)

From equation (1) and (2) :

$tan\theta=\dfrac{v^2}{rg}$

$tan\theta=\dfrac{(28)^2}{150\times 9.8}$

$\theta=28.07^{\circ}$

So, the string makes an angle of 28.07 degrees with the vertical. Hence, this is the required solution.

4 0

3 years ago

If the strength of a magnetic field at B is three units the strength of the magnetic field at A is ____?

Tema [17]

If the strength of a magnetic field at B is three units the strength of the magnetic field at A, means that point B has three times more turns as compared to point A.

<h3>How strength of the magnetic field should be increased?</h3>

We can increase the strength of the magnetic field by increasing the number of turns which increases the strength of the current flow.

So we can conclude that point B has three times more turns as compared to point A.

Learn more about magnetic field here: brainly.com/question/14411049

#SPJ1

8 0

2 years ago

In a circuit a battery is used to

Anarel [89]

Produce power through the circuit.

7 0

4 years ago

Read 2 more answers

The tailor makes 4 blue shirts for every 3 white shirts he makes. If the tailor makes 12 white shirts in 1 day, how many blue sh

Sati [7]

4 blue = 3 white
x blue = 12 white?

$\frac{4 blue}{3 white} = \frac{x blue}{12 white}$

Cross multiply
48 = 3x
x = 16 blue

Another way to do this is figure how many times 3 whites go into 12 whites.
That's 4 times.
So 4 blue x 4 = 16 blue

8 0

4 years ago

Read 2 more answers