1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
krok68 [10]
3 years ago
14

The fundamental (LaTeX: n=1 n = 1 harmonic or mode) frequency created on a stretched string with fixed ends occurs when the stri

ng is driven at a frequency of 50 Hz. If the tension in this string is doubled without changing its mass density, what would be the new fundamental frequency?
Physics
1 answer:
Gennadij [26K]3 years ago
3 0

Answer:\sqrt{2}f

Explanation:

Given

Fundamental Frequency(f) is 50 Hz

and frequency is given by

f=\frac{1}{2L}\sqrt{\frac{T}{\mu }}---1

Where T= tension

\mu=mass per unit length

if tension is doubled

f'=\frac{1}{2L}\sqrt{\frac{2T}{\mu }}---2

Divide 1& 2

\frac{f}{f'}=\sqrt{\frac{T}{2T}}

f'=\sqrt{2}f

You might be interested in
A ring placed along y 2 + z 2 = 4, x = 0 carries a uniform charge of 5 μ C/m. ( a ) Find D at P(3,0,0) . ( b ) If two identical
GuDViN [60]
For right now idk :p
3 0
3 years ago
I need help in my physics class and show me how it’s done
Korolek [52]

If we have the angle and magnitude of a vector A we can find its Cartesian components using the following formula

A_x = |A|cos(\alpha)\\\\A_y = |A|sin(\alpha)

Where | A | is the magnitude of the vector and \alpha is the angle that it forms with the x axis in the opposite direction to the hands of the clock.

In this problem we know the value of Ax and Ay and we need the angle \alpha.

Vector A is in the 4th quadrant

So:

A_x = 6\\\\A_y = -6.5

So:

|A| = \sqrt{6^2 + (-6.5)^2}\\\\|A| = 8.846

So:

Ay = -6.5 = 8.846cos(\alpha)\\\\sin(\alpha) = \frac{-6.5}{8.846}\\\\sin(\alpha) = -0.7348\\\\\alpha = sin^{- 1}(- 0.7348)

\alpha = -47.28 ° +360° = 313 °

\alpha = 313 °

Option 4.

4 0
3 years ago
You drive a car 1600 ft to the east, then 2500 ft to the north. The trip took 2.5 minutes. What was the magnitude of your averag
elena-14-01-66 [18.8K]

Answer:

Velocity=6.03m/s

Explanation:

Given data

Time t=2.5 minutes=150 seconds

Distance A=1600 ft=487.68 m........east

Distance B=2500 ft=762m ........north

To find

Average velocity

Solution

First we need to find the resultant distance magnitude.To find that we apply Pythagorean theorem to find hypotenuse

So

A^{2}+B^{2}=C^{2}\\  C=\sqrt{A^{2}+B^{2}}\\ C=\sqrt{(487.68m)^{2}+(762m)^{2}}\\ C=904.7m

Velocity=\frac{Distance}{Time}\\Velocity=\frac{904.7m}{150s}\\Velocity=6.03m/s

7 0
3 years ago
B. Find the centripetal force needed to keep an 60.0 kg rider traveling in a circle in the ride.
schepotkina [342]

Answer:

loloololo

lol

Explanation:

lolloolololo

8 0
3 years ago
Which nuclei is not radioactive? <br> A. Am-241<br> B. Mg-24<br> C. Pu-241<br> D. U-238
Helen [10]

Hello!

Which nuclei is NOT radioactive?

A) Am-241 B) Mg-24 C) Pu-241 D) U-238

Solving:

It is noteworthy that chemical elements located on the periodic table in the lanthanide and actinide groups are radioactive.  

Am-241 (americium) belongs to the group of actinides and is a heavy and radioactive metal.  

Mg-24 (magnesium) is an essential element for the body, mainly for the nervous system, in addition to synthesizing proteins and serves for hormonal control, belongs to the group of alkaline earth metals and is a non-radioactive nucleus.

Pu-241 (plutonium) is an element that is isotope of fission by plutonium, belongs to the group of actinides and is a heavy and radioactive metal.  

U-238 (uranium) is an element that is isotope of non-fission uranium, belongs to the group of actinides and is a heavy and radioactive metal.

Answer:

B) Mg-24

_______________________

I Hope this helps, greetings ... Dexteright02! =)

6 0
3 years ago
Other questions:
  • How do cranial nerves transmit information to the senses?
    10·2 answers
  • A 500.0-kilogram cannon is at rest on a frictionless surface. A remote triggering device causes a 5.0-kilogram projectile to be
    13·1 answer
  • Exit to create electricity using a nuclear power plant, energy from the uranium in the reactor produces lots of ________ in orde
    6·1 answer
  • A molecule of roughly spherical shape has a mass of 6.10 × 10-25 kg and a diameter of 0.70 nm. The uncertainty in the measured p
    6·1 answer
  • A 110 kg ice hockey player skates at 3.0 m/s toward a railing at the edge of the ice and then stops himself by grasping the rail
    6·1 answer
  • Two disks are mounted (like a merry-go-round) on low-friction bearings on the same axle and can be brought together so that they
    12·1 answer
  • Should athletes be benched if their grades are too low, or should they be allowed to play anyway?
    7·1 answer
  • Which of these changes would likely occur if the rate of Earth's rotation on its axis decreased? The length of day would be shor
    15·1 answer
  • Brian is repairing an old alarm clock. He needs to replace a device that converts the electric energy into sound energy. Which o
    9·2 answers
  • What is the name of the process where rocks are being broken down into small grains of sediment or soil?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!