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
sashaice [31]
4 years ago
14

I WILL GIVE BRAINLIEST

Physics
1 answer:
Sveta_85 [38]4 years ago
4 0
A. Air, desk, water. sound travels the slowest through air and the fastest through liquids. solids are somewhere in the middle.
You might be interested in
Air is warmed and moisten as it moves through both the mouth and nasal passages.
Alexxx [7]

Well, in my own personal case, I can actually move the air in either
direction through both of those.

When I move the air inward from the outside, it's warmed and moistened.

When I move it outward from the inside, it's not.
3 0
3 years ago
Read 2 more answers
The components of vector A are Ax and Ay (both positive), and the angle that it makes with respect to the positive x axis is θ.
DIA [1.3K]

Answer:

a) \theta = tan^{-1} (\frac{11}{11})= tan^{-1} (1)=45 degrees

b) \theta = tan^{-1} (\frac{11}{19})= tan^{-1} (0.579)=30.07 degrees

c) \theta = tan^{-1} (\frac{19}{11})= 59.93 degrees

Explanation:

If we have a vector A= (A_x ,A_y) in a two dimensional space. The angle respect the x axis can be founded from the following expression:

tan (\theta)= \frac{A_y}{A_x}

And then the angle is given by:

\theta = tan^{-1} (\frac{A_y}{A_x})

Part a

Ax = 11 m and Ay = 11 m

For this case the angle would be:

\theta = tan^{-1} (\frac{11}{11})= tan^{-1} (1)=45 degrees

Part b

Ax = 19 m and Ay = 11 m

For this case the angle would be:

\theta = tan^{-1} (\frac{11}{19})= tan^{-1} (0.579)=30.07 degrees

Part c

Ax = 11 m and Ay = 19 m

For this case the angle would be:

\theta = tan^{-1} (\frac{19}{11})= 59.93 degrees

8 0
3 years ago
Read 2 more answers
What happens when light bounces off an object
Sever21 [200]
Absorbtion consists of when light strikes on an object and bounces off. 
3 0
3 years ago
Read 2 more answers
What is the differece between force and motion?​
Jobisdone [24]

Answer:

---

Explanation:

Force is like the amount of push

Motion is the result of Push

6 0
3 years ago
Read 2 more answers
A helium balloon containing 5m³ of gas at a pressure of 30kPa is released into the air. Assuming that the temperature is constan
Minchanka [31]

Answer:

30 m³

Explanation:

Parameters given:

Initial volume of helium, V1 = 5 m³

Initial pressure in balloon, P1 = 30 kPa

Final pressure, P2 = 5 kPa

To find the volume of the balloon at that volume, we apply Boyle's law.

It states that at constant temperature, the pressure of a gas is inversely proportional to the volume of the gas.

Mathematically:

P = k / V

Where k = constant of proportionality

This implies that:

P * V = k

This means that if the pressure or volume of the gas changes at the same temperature, the product of the pressure and volume would be the same:

Hence:

P1 * V1 = P2 * V2

Hence, to find the final volume:

30 * 5 = 5 * V2

=> V2 = (30 * 5) / 5

V2 = 30 m³

The volume of the gas when the pressure is 5 kPa is 30 m³.

6 0
4 years ago
Other questions:
  • In order to study the long-term effects of weightlessness, astronauts in space must be weighed (or at least "massed"). One way i
    14·1 answer
  • A lunar lander is descending toward the moon's surface. Until the lander reaches the surface, its height above the surface is gi
    6·1 answer
  • A deep space probe travels in a straight line at a constant speed of over 16,000 m/s. Assuming there is no friction in space, if
    10·1 answer
  • 10. Define and give 2 examples of kinetic energy. Be sure to include the two factors that make an object’s kinetic energy increa
    10·1 answer
  • The regular use of a narcotic drug will lead to blank dependence
    13·2 answers
  • The smallest division on the scale of the triple beam balance is .1 g. What is the error in mass for measurements made with this
    11·1 answer
  • A hill has three paths up and sides to a flat summit area that three path Lanks are different but the vertical height from the b
    11·1 answer
  • A 4 kg block of iron weighs about<br><br> a.) 4 N<br> b.) 40 N<br> c.) 0.4 N<br> d.) more than 400 N
    5·1 answer
  • A sprinter starts from rest and runs with constant acceleration to a top speed of 12m/s in 4.0 seconds.
    9·1 answer
  • Mechanism of electric generator​
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!