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
never [62]
3 years ago
6

If we increase the speed of rotation of wheel then the sound produced by cardboard touching the spokes of the wheel will become

Physics
1 answer:
Anarel [89]3 years ago
5 0

it will become shrill

You might be interested in
List the planet name and position from the Sun for each one (1, 2, 3)
IgorLugansk [536]

Answer:

The planets in order from the sun are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune and finally the dwarf planet Pluto. Most people have at least heard about our solar system and the planets in it.

Explanation:

<h3><u><em>please mark me brainliest</em></u></h3>
8 0
2 years ago
The law of conservation of mass applies to all chemical reactions.
serious [3.7K]
True. No matter can be created nor destroyed in pretty much every aspect of life, especially chemical reactions.
3 0
2 years ago
A 30° incline permanently sits on a 1.1 meter high table. Starting from rest a ball rolls off the incline with a velocity of 2m/
exis [7]
It would be a good game for you but if I get a pic I don’t want you can you come to my crib I just
3 0
2 years ago
How many coulombs of positive charge are there in 4kg of plutonium, given its atomic mass is 244 and that each plutonium atom ha
Ne4ueva [31]

Answer:

ggbgdsbgsgbs

Explanation:

8 0
2 years ago
A weather balloon is operating at an altitude at which the density of air is 0.90 kg/m^3. At this altitude, the balloon has a vo
Archy [21]

Answer:

54 N

Explanation:

Draw a free body diagram.  There are four forces acting on the balloon.  Buoyant force pushing the balloon up, gravity pulling the helium down, gravity pulling the balloon skin down, and gravity pulling the load down.

Apply Newton's second law:

∑F = ma

B − Wh − Wb − L = ma

When the load is at a maximum, the acceleration is 0:

B − Wh − Wb − L = 0

B − Wh − Wb = L

B − mh g − Wb = L

The mass of the helium is its density times its volume:

B − ρh Vh g − Wb = L

Buoyant force is defined as B = ρVg, where ρ is the density of the displaced fluid (in this case, air), V is the volume of the displaced fluid, and g is acceleration of gravity.  Since the volume of displaced air = the volume of the helium:

ρa V g − ρh V g − Wb = L

(ρa − ρh) V g − Wb = L

Given that ρa = 0.90 kg/m³, ρh = 0.178 kg/m³, V = 20 m³, g = 9.8 m/s², and Wb = 88 N:

(0.9 − 0.178) (20) (9.8) − (88) = L

L = 53.5 N

Rounded to 2 sig-figs, the maximum load that can be supported is 54 N.

3 0
3 years ago
Other questions:
  • A spring of force constant 285.0 N/m and unstretched length 0.230 m is stretched by two forces, pulling in opposite directions a
    14·1 answer
  • Two countries that go through Tropic of Cancer
    5·2 answers
  • As you drive away from a radio transmitter, the radio signal you receive from the station is shifted to longer wavelengths. (T/F
    9·1 answer
  • As you are trying to move a heavy box of mass m, you realize that it is too heavy for you to lift by yourself.There is no one ar
    8·1 answer
  • What type of Galaxy is considered the most common?
    12·2 answers
  • You matter .<br>Until you Multiply yerself by the speed of Light Squared. <br>Then you Energy.<br>​
    5·2 answers
  • The tension in cable da has a magnitude of tda=6.27 lb. find the cartesian components of tension tda, which is directed from d t
    12·1 answer
  • 2. A train is traveling at 75 km/hour. How far can it travel in 20 hours?
    5·2 answers
  • How much force would you need to accelerate a 4 kg object from a standstill to 5 m/s2?
    5·1 answer
  • Scientists are making plans to put a probe in orbit around Earth. They want the probe to enter the orbit shown below.
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!