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
Fittoniya [83]
3 years ago
8

If the frequency of a sound wave is 990 Hz, calculate its wavelength.

Physics
1 answer:
kaheart [24]3 years ago
5 0
1. wavelength = speed / frequency 
<span>= 331/990 </span>
<span>= 33.4cm </span>
You might be interested in
An optical disk drive in your computer can spin a disk up to 10,000 rpm (about 1045 rad / s). if a particular disk is spun at 79
NeX [460]
(i) |α| = 235.6rad.s / 0.502s = 469 rad/s²
(ii) tang a = α*r = 469rad/s² * 0.12m / 2*11 = 2.56 m/s²
4 0
3 years ago
Name an element in the same period as rubidium
Artyom0805 [142]

Answer: Potassium(K)

Explanation:

its an alkali metal placed under sodium and its over rubidium, its also the first element of period 4

5 0
2 years ago
What is the force of gravity between two 50.0kg masses that are separated by 0.300m?3.71x10-8N5.59x10-7N2.78x104N1.85x10-6N
Varvara68 [4.7K]

We will have the following:

\begin{gathered} F=G\frac{m_1m_2}{r^2}\Rightarrow F=\frac{(6.67\ast10^{-11}m^3\ast kg^{-1}\ast s^{-2})(50kg)(50kg)}{(0.3m)^2} \\  \\ \Rightarrow F=1.852777778...\ast10^{-6}N\Rightarrow F\approx1.85\ast10^{-6}N \end{gathered}

So, the force is approximately 1.85*10^-6 N.

7 0
10 months ago
As the population in a small town grows, a new water treatment plant is built. The plant is built on a local river where it can
abruzzese [7]

Treatment water from the plant would affects the communities present in the downstream of the river.

Answer: Option (a)

<u>Explanation:</u>

Wastewater treatment plant is a process used to treat the water that flows from the rivers, streams, and lakes.This plant removes the dust, sand, sediments present in the river water.

When this treated water is released into the downriver stream, it affects the health of aquatic organisms present in that stream.Use of chemicals in treating the wastewater may cause genetic problems to the communities present in that region.

It also causes air pollution and more energy is needed for the treatment process and thus affects the ecosystem.

6 0
3 years ago
Read 2 more answers
Which of the following has to happen before the eardrum begins to vibrate with the same frequency as the source of the sound wav
777dan777 [17]
I just took the test it is D




I am 100% sure
8 0
3 years ago
Read 2 more answers
Other questions:
  • Three resistors with values of , , and are connected in series in a circuit with a 9.0-V battery. (a) What is the total equivale
    15·1 answer
  • Whats the answer for the second question ???
    11·1 answer
  • What elements are in NaOH
    7·2 answers
  • Why aren't iron, cobalt and iron in the same group of elements?
    10·1 answer
  • Planet-solar system-galaxy-local group. what comes next
    9·1 answer
  • When viewed in yellow light, an object that reflects all the colors of light will appear_____.
    15·1 answer
  • Two point-charges Q1 and Q2 are 2.5 m apart, and their total charge is 19μC. If the force of repulsion between them is 0.07 N,
    10·1 answer
  • An object is thrown vertically up and attains an upward velocity of 34 m/s when it reaches one fourth of its maximum height abov
    10·1 answer
  • Two long, straight wires are separated by a distance of 32.2 cm. One wire carries a current of 2.75 A, the other carries a curre
    11·1 answer
  • The density of a gas sample in a balloon is 1.50 g/l at 75°c. what is the density of this gas when the temperature is changed t
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!