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
ahrayia [7]
3 years ago
13

What is the frequency, in hertz, of a sound wave (v = 340 m/s) with a wavelength of 68 m?

Physics
1 answer:
hram777 [196]3 years ago
5 0

Answer:

frequency = 5 Hz

Explanation:

F = v/wavelength

F = 340/68 =5Hz

You might be interested in
Where is most of the mass of an atom located? A.in the nucleus B.in the orbits C.in the electrons Dit is split between the nucle
ElenaW [278]
I think it is A........................................ 
6 0
3 years ago
Read 2 more answers
Explain how a step-down transformer makes electricity safe for use in homes.
Savatey [412]

Answer:

it lowers the voltage in homes

Explanation:

this is due to safety reasons as a human cant survive power line voltages which are between 150k and 760k and if you plugged anything short of a piece of 1 inch thick wire not counting insulation it would immediately start smoking and burn the cable.

3 0
3 years ago
Read 2 more answers
What type of modulation is typically used by broadcasting stations to transmit pictures on television screens?
umka21 [38]
Analog

Television transmitters use one of two different technologies: analog, in which the picture and sound are transmitted by analog signals modulated onto the radio carrier wave, and digital in which the picture and sound are transmitted by digital signals.
4 0
3 years ago
Read 2 more answers
The blades of a fan running at low speed turn at 250 rpm. When the fan is switched to high speed, the rotation rate increases un
fgiga [73]

Answer:

1.82 rad/s².

Explanation:

Applying,

α = (ω₂-ω₁)/t..................... Equation 1

Where α = angular acceleration of the fan blades, ω₂ = final angular velocity of the fan blades, ω₁ = initial angular velocity of the fan blades, t =  time.

Given: ω₂ = 350 rpm = (350×0.1047) rad/s = 36.645 rad/s. ω₁ = 250 rpm = (250×0.1047) rad/s = 26.175 rad/s, t = 5.75 s.

Substitute into equation 1

α = (36.645-26.175)/5.75

α = 10.47/5.75

α = 1.82 rad/s².

Hence the magnitude of the angular acceleration of the fan blades = 1.82 rad/s²

8 0
3 years ago
To enhance the effective surface, and hence the chemical reaction rate, catalytic surfaces often take the form of porous solids.
marysya [2.9K]

Answer:

See solution with all the conditions considered. A gaseous mixture of A and B for which species A is chemically consumed at the catalytic surface.

The total pore reaction rate is stated below and it can be inferred by applying the bellow analogy.

4 0
3 years ago
Other questions:
  • D the element in blue square has a full outer shell, due to it’s location on the periodic table, so it will not react with other
    11·1 answer
  • Find the value of a x , the x-component of the object's acceleration.
    11·1 answer
  • The heating coils in a hair dryer are 0.800 cm in diameter, have a combined length of 1.00 m, and a total of 400 turns. (a) What
    5·2 answers
  • Estimate how many gallons of water are used in this country each year for flushing toilets.
    6·2 answers
  • Two boxes are at rest on a smooth, horizontal surface. The boxes are in contact with one another. If box 1 is pushed with a forc
    14·1 answer
  • Republicans are called the Liberal Party while the Democrats are called Conservative Party.
    7·2 answers
  • Which type of electricity moves along part way to turn on light ​
    10·1 answer
  • Una mariposa vuela en linea recta hacia el sur con
    9·1 answer
  • Please help
    11·1 answer
  • Energy released by the sun results from the process where atomic nuclei
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!