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
nexus9112 [7]
3 years ago
13

Which statement is true for a sound wave entering an area of warmer air

Physics
2 answers:
Reika [66]3 years ago
8 0
That waves travel faster than the wave lenght!
kotegsom [21]3 years ago
7 0
The sound is transferred by collisions of molecules. Therefore sound waves will travel faster on warm air because collisions of molecules of air in warm air are greater.
You might be interested in
Home Run
svp [43]

The force acting on the ball are unbalanced. Reactionary momentum force (that originated as a result of the swing of the bat) is the most powerful.

Yes friction is acting on the ball. In course of journey it would slow the ball down and make it trace a parabolic path rather than straight path as intended by hitter.

Explanation:

As the hitter hits the ball, momentum of the bat due to swing (mass of the bat*velocity provided by the batsman swinging action of bat) gets transferred on the ball on its impact with the bat.

Since ball’s mass is quite small as compared to the bat, the velocity of the ball increases by the same factor by which the ball’s mass is lower than the bat’s mass. This velocity causes forward motion of the ball (of course in the direction of bat’s motion, here the batsman intends to send the ball straight away hence the ball would move straight).

Various forces on ball is-

  • Reactionary momentum force -bat’s force (most powerful force)
  • The frictional force of the air (opposing the motion of the ball through the air)
  • Gravity force (pulling the ball down to the Earth)

As a combined effect of these force when all the force remains unbalanced, the ball moves away in the straight path under the impact of bats momentum which was most powerful of all.

Frictional force and Gravity force continue acting on the ball. While frictional forces decrease the ball velocity through the air, gravity force pulls it down thus deflecting its direction. Under the combined impact of declining bats momentum, friction force and gravity force, the ball traces a parabolic path  (in accordance with the first law of motion from Newton)

8 0
3 years ago
HELP PLEASE 20 ;OINTS
77julia77 [94]
I’m pretty sure it’s C.
7 0
3 years ago
What is one way that continental rifts are similar to mid-ocean ridges and what is one that they are different?
adell [148]

Explanation:

Continental rifts and mid-ocean ridges are both features of a divergent plate margin.

In both cases plates are moving away from one another. Therefore they are creating new land masses.

  • A continental drift like the east African rift valley is where a continent begins to pull apart or diverges.
  • A mid-ocean ridge is divergent margin in the ocean.

They are different in that, continental rift occurs within the continental plate that are on land.

But:

 Mid-ocean ridges are in the oceanic crust in the ocean . They form the largest physiographic structure on the earth surface called the mid-ocean ridge.

learn more:

Descending lithosphere brainly.com/question/9582362

#learnwithBrainly

3 0
3 years ago
Read 2 more answers
Which process do plants use to turn sunlight into food energy? photosynthesis cellular respiration transpiration evaporation
Aloiza [94]
The answer is A. Photosynthesis 
have a good day!
5 0
3 years ago
Read 2 more answers
A sliver cylindrical rod has a length of 0.5 m and a radius of 0.4 m, find the density of the rod if it's mass is 2.640 kg
Serga [27]

Answer:

Density=10.50kg/m³

Explanation:

Solution,\\Height(h)=0.5m\\Radius(r)=0.4m\\Now, \\Volume=\pi r^{2} h\\\\Volume=\pi *(0.4m)^{2} *0.5m\\\\Volume=0.251327m^{3} \\\\Again,\\\\Density=\frac{mass}{volume} \\\\Density=\frac{2.640kg}{0.251327} \\\\Density=10.50kg/m^{3}

7 0
2 years ago
Other questions:
  • In an effort to protect a rhino, volunteers are following its steps with air monitoring and ground cameras. The rhino starts on
    8·1 answer
  • How do contact forces such as friction differ from gravitational and magnetic forces?
    13·1 answer
  • A 70.0 kg ice hockey goalie, originally at rest, has a 0.170 kg hockey puck slapped at him at a velocity of 33.5 m / s . Suppose
    11·1 answer
  • A northbound train and a southbound train meet each other on parallel tracks heading in opposite directions. The northbound trai
    6·2 answers
  • what is the average speed of a car that travels 40mph for 1 hour and 60 mph in another hour PLEASE HELP WILL MARK BRAINLIEST
    7·1 answer
  • What are the products in the reaction in the introduction above? Select all that apply.
    8·1 answer
  • If A bar + B bar = C bar and magnitude of A bar + magnitude of B bar = magnitude of C bar. Then the angle between A bar and B ba
    6·1 answer
  • Of all of the types of forest biomes, tropical rain forests contain the most biodiversity, even though they do not have the most
    6·2 answers
  • Moon A has a mass of 3M and a radius of 2R. Moon B has a mass of 4M and a radius of R. What is the ratio of the force of gravita
    6·1 answer
  • The normal eye, myopic eye and old age
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!