3 years ago

Which of the following is the number of cycles per unit of time? infrasonis wave,frequency,ultrasonic wave or pitch

Physics

2 answers:

Allushta [10]3 years ago

4 0

Frequency
Hope this helped :)

kodGreya [7K]3 years ago

3 0

Answer:

Explanation:

permanent magnets, electromagnet

You might be interested in

Clara and Eli used materials they could find at home to make a simple seismograph. As Clara pulls the strip of paper through the

tatyana61 [14]

Answer:

The recording that Eli and Clara's Seismograph would show will be very close to that a real Seismograph would show. This is because the mechanism they have constructed is very similar to the real one.

Explanation:

hope this helps

6 0

2 years ago

How much current flows through a 100- ohm device connected to a 1.5- volt battery

Stolb23 [73]

Answer:

0.015A

Explanation:

I=V/R

=1.5/100

0.015A

Just apply ohm's law

5 0

2 years ago

A sound wave has a frequency of 247 Hz and a wavelength of 1.4 m. What is the speed of the sound wave in air?

zavuch27 [327]

The speed of sound through air at room temperature is almost always 343 m/s. However, since it doesn't tell you that, use the equation wavelength=velocity/frequency. Plug in the numbers: 1.4=v/247, and v=345.8 m/s.

5 0

3 years ago

A person having a mass of 85 kg sits on the edge of a horizontal rotating platform, 2.2 m from the center of the platform, and h

gulaghasi [49]

The angular momentum of the person is given by:
$L=mvr$
where $m=85 Kg$ is the mass of the person, $v=6.6 m/s$ is the tangential velocity, and $r=2.2 m$ is the distance of the person from the center of rotation. Using these data, we find
$L=(85 Kg)(6.6 m/s)(2.2 m)=1234.2 Kg \cdot m^2/s$

3 0

3 years ago

What is the velocity of the boat if the passenger shoots at an angle 60 with horizontal ? The mass of boat with the passenger is

mixas84 [53]

Answer:

400cos(60) = 200m/s

100(v) = 0.035(200)

v= 0.07m/s

8 0

2 years ago