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
raketka [301]
3 years ago
8

Why the mechanical wave need a medium to propagate?

Physics
1 answer:
Reptile [31]3 years ago
8 0
"Mechanical" means that someTHING is moving, so someTHING needs to be there waving, or else there can't be a mechanical wave.
You might be interested in
Calculate pressure when f=50N and a=100m^2​
andrezito [222]

Answer:

0.5Pa

Explanation:

P = F/a

F = 50N

a = 100m²

P = 50/100

= 1/2 Pa

= 0.5Pa

3 0
3 years ago
A stream of warm water is produced in a steady-flow mixing process by combining 1.0 kg/s of cool water at 25 °C with 0.8 kg/s of
Tamiku [17]

Explanation:

The given data is as follows.

      m_{1} = 0.8 kg/s = 800 g,      C_{1} = 4.18 J/g^{o}C

     m_{2} = 1 kg = 1000 g,   T_{1} = (75 - T),

     T_{2} = T - 25

Now, according to the law of conservation of energy,

         m_{1}C_{1}T_{1} = m_{2}C_{2}T_{2} + mL

     800 \times 4.18 \times (75 - T) = 1000 \times 4.18 \times (T - 25) + 30000

      250.8 - 3.34T = 4.18T - 104.5 + 30

          T = \frac{325.3}{7.52}

              = 43.23^{o}C

Thus, we can conclude that temperature of the warm water stream is 43.23^{o}C.

4 0
3 years ago
State the law of universal gravitation, and use examples to explain how changes in mass and changes in distance affect gravitati
juin [17]
F(g)= Gm1m2/ r^2 If mass is increased, so will the force of gravity because it is in direct relationship with the gravitational force, but if distance is increased, the force of gravity will decrease because it is indirectly related ( since it is on the bottom of the equation)
6 0
3 years ago
Help with i) and ii) pls >_
alina1380 [7]

Answer:

4 it the corrcert anser

Explanation:

4 0
2 years ago
Read 2 more answers
A grain silo is shown below:grain silo formed by cylinder with radius 5 feet and height 175 feet and a half sphere on the topwha
nekit [7.7K]
Find the volume of the bottom and top separately and then add them.
Cylinder volume is the area of the bottom times the height
(22/7)(5^2)•175=13750 ft^3

The volume of a sphere is
V=(4/3)(22/7)r^3
where r is the radius. Here that's also 5 since it fits on the cylinder.
Also we only want half the sphere so use
V=(2/3)(22/7)•5^3=261.9 ft^3
Which we round upto 262.
Now add the parts together
13750+262=14,012 ft^3
6 0
3 years ago
Other questions:
  • Eratosthenes determined the circumference of Earth by conducting an experiment. Put his steps in order as they correlate to the
    9·1 answer
  • A horse performs 15000 joules of work pulling a wagon for 20 seconds what is the horses power
    7·1 answer
  • What is the smallest particle of the element iron (fe) that can be as iron ?
    9·1 answer
  • What kind of variation is there in the mechanical energy as the cart rolls down the ramp? Does this agree with your prediction?
    15·1 answer
  • Projectile motion physics question 11 please​
    11·1 answer
  • Do you guys know how to find out the Wave Speed using frequency and wavelength?
    10·1 answer
  • Select an incorrect statement relating to a Carnot cycle operating on a gas. A) Each process is a reversible process. B) work oc
    11·1 answer
  • Waves transfer _________________, not the _____________ with it. A ______________________ causes particles in matter to move bac
    9·1 answer
  • Whoever get this right gets free cookies. best deal. ( BASIC PHYSICS QUESTION )
    14·1 answer
  • How does a second class lever make our work easier​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!