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
Lemur [1.5K]
2 years ago
11

The speed of sound in aluminum is 5200 m/s. Can you hear a sound with a

Physics
1 answer:
romanna [79]2 years ago
5 0

Answer:

v = wavelength * frequency

frequency = 5200 m/s / .2 m = 26000 / sec

20,000 / sec is optimistic for the upper frequency of human hearing

So 26,000 is above the hearing range for human ears

You might be interested in
A suspension bridge has twin towers that are 1300 feet apart. Each tower extends 180 feet above the road surface. The cables are
zhannawk [14.2K]

Answer:

y = 17.04 ft

Explanation:

Since the cable touches the road at the mid point of two towers

so here we have vertex at that mid point taken to be origin

now the maximum height on the either side is given as

y = 180 ft

horizontal distance of the tower from mid point is given as

x = \frac{1300}{2} = 650 ft

now from the equation of parabola we have

y = k x^2

180 = k(650^2)

k = 4.26 \times 10^{-4}

now we have

y = (4.26 \times 10^{-4})x^2

now we need to find the height at distance of 200 ft from center

so we have

y = (4.26 \times 10^{-4})(200^2)

y = 17.04 ft

8 0
3 years ago
3 examples when friction is helpful?
Svetllana [295]
Some examples of when friction is helpful are: to help the movement of tires. When you walk, and also, when you erase. :)
4 0
3 years ago
The texture of obsidian is best described as glassy.Why does obsidian contain few or no mineral grains? by the way I put it unde
Brrunno [24]

hi, so the material that would normally form mineral crystals does not have time to form a crystalline structure because of very rapid cooling after volcanically erupting into the air or onto the surface. Obsidian is a volcanic glass.

4 0
3 years ago
Which of the following lists the composition of the Earth’s outer core?
iris [78.8K]
Well,

The outer core of the Earth is mostly composed of iron and nickel.

The correct option is C.
5 0
3 years ago
Three examples that prove newton's law of motion​
s344n2d4d5 [400]
If you have a skateboard and you skate into a tree on accident the same amount of force you put onto that tree when you was on the skateboard will come back at you when you bounce back
7 0
3 years ago
Other questions:
  • Monochromatic light falls on two very narrow slits 0.048 mm apart. successive fringes on a screen 5.00 m away are 6.5 cm apart n
    12·1 answer
  • certification programs are available at all of the following except A. online schools B. vocational school C. community colleges
    8·2 answers
  • A uniform diving board, 12 meters long and 20 kg in mass, is hinged at P, which is 5 meters from the edge of the platform. An 80
    13·1 answer
  • Which type of telescope focuses star light using mirrors?
    6·1 answer
  • A wall clock has a minute hand with a length of 0.55 m and an hour hand with a length of 0.26 m. Take the center of the clock as
    8·1 answer
  • What examples can you find in your home that are examples of kinetic and potential energy?
    11·1 answer
  • Which statement is true about vectors? a. All quantities in physics are not vectors. b. A vector may have either magnitude or di
    9·1 answer
  • How much power is generated by a motor that can do 3,000j of work in 75s
    8·1 answer
  • 6. Which formula could you use according to the scenario? Five grams of substance occupy 3 cm3 of a flask. Om = du OD Ot= d​
    8·1 answer
  • Soap bubbles can display impressive colors, which are the result of the enhanced reflection of light of particular wavelengths f
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!