15) what is the frequency of a pendulum that is moving at 30 m/s with a wavelength of .35 m?
show step by step
Solved
Show answers
More tips
- C Computers and Internet Best Antivirus: How to Choose Protection for Your Computer?...
- L Legal consultation What Documents Are Required for a Russian Passport?...
- S Sport How to Choose Tennis Rackets?...
- H Health and Medicine AKDS Vaccination: Ensure Your Child s Safety...
- H Health and Medicine Naskol ko Opasen Ukus Kleshcha i Kak Ego Raspoznat...
- C Computers and Internet How to Delete Your Account on Odnoklassniki...
- H Health and Medicine What to Do When Your Jaw Locks Up?...
- G Goods and services What Are the Most Popular Services?...
- P Philosophy How did the concept of module arise in computer science?...
Answers on questions: Physics
- P Physics If an object is in motion, then the object will because ....
- P Physics Put them in order to smallest to largest: centimeter, femtometer, kilometer, light year, meter, nanometer...
- P Physics Consider a rower in a scull as in (Figure 1). The oars aren t accelerating, and they are rotating at a constant speed, so the net force and net torque on the oars...
- P Physics Whatttu I have nothing to say other than boo...
- P Physics A 10 kg object experiences a horizontal force which causes it to accelerate at 5 m/s², moving it a distance of 20 m, horizontally. How much work is done by the force?...
- P Physics How do you think speed affects car and driver safety?...
- P Physics Suppose the maximum safe intensity of microwaves for human exposure is taken to be 1.48~\mathrm{watts/m^2}1.48 watts/m 2 . if a radar unit leaks 10.0~\text{watts}10.0...
- P Physics When the body s temperature the blood vessels, reducing the heat released to the surface....
- P Physics Each water molecule is joined to other water molecules by bonds....
- P Physics Solstice that occurs in december in the southern hemisphere is called...
Ответ:
We know that there is a formula velocity = frequency x wavelength for all types of waves.
If we assume one complete oscillation of a pendulum to be wavelength we can apply the above formula for the pendulum too.
So as v = fλ and f = v/λ we can just plug in the values to get our answer of frequency.
So frequency = 30/0.35 which is equal to 85.17 Hertz (Hz).
Ответ:
frequency of a wave, and apply them to a pendulum. You can't do that.
It doesn't work.
A pendulum is moving in 'simple harmonic motion', not wave motion.
It's speed is continuously changing, from zero at both ends of its swing,
to maximum as it passes through the 'rest' position at the bottom. And
there's no wavelength defined for a pendulum ... if you're thinking that
it could be the distance from end to end of its swing, or maybe half of
that, you should know that the frequency of an ideal simple pendulum
is not related to that distance at all.
Finally, in the real world, the numbers in this question really kind of
don't make any sense. You have a structure where some part of it is
roughly a foot long (0.35m = 13.8 inches), and at least at some point
during its swing, something is moving at 30 m/s ... about 67 mph !
If something like that could even stay on the table, and IF its frequency
were (speed/wavelength) ... like a wave's frequency is ... then its frequency
would be (30 / 0.35) = 85.7 Hz ! ! The thing would be wiggling back and
forth every 0.017 second ! It would need to be operated only inside
a bomb shelter, with all personnel withdrawn beyond a safe perimeter
before it flies apart and scatters shrapnel everywhere.
Ответ: