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
grigory [225]
3 years ago
11

The main difference between heat and temperature is that temperature is solely dependent on the?

Physics
1 answer:
WITCHER [35]3 years ago
3 0
Velocity of molecules within a body
You might be interested in
A rock band playing an outdoor concert produces sound at 120 dB 5.0 m away from their single working loudspeaker. What is the so
joja [24]

ANSWER:100dB

f<em>rom the  sound intensity level,the sound intensity is calculated as:</em>

<em />\beta<em>₁=</em>\beta<em>=(10dB)㏒₁₀(l₁/l₀)</em>

<em>inserting numbers:</em>

<em>120dB=(10dB)㏒₁₀[l₁/10⁻¹²W/m⁸] or 12=㏒₁₀[l₁/(10⁻¹²)W/m²</em>

<em>Getting the antilog of both sides and obtain 10¹²=l₁(10⁻¹²W/m²)which </em>

<em>can be used to solve for l₁ and get</em>

<em>          l₁=(10⁻¹²W/m²)(10¹²)=1 W/m²</em>

<em>since the sound  intensity is related to the power and that the power does not change,the sound intensity at any other point can be solved.Plugging-in</em>

<em>ᵃ = 4πr²,into P=l₁ₐ₁=l₂ₐ₂ and get:</em>

<em>l₂=l₁(r₁/r₂)² =(1W/m²)(5/35) =2.04×10⁻²W/m²</em>

<em>since we know the sound intensity at the sound point 2r,the sound intensity level at the point can be solved.We have:</em>

<em>     </em>\beta<em>₂=</em>\beta<em>=(10dB)㏒₁₀(l₂/l₀)=(10dB)㏒₁₀(2.04×10⁻²/1×10⁻²)</em>

<em>    </em>\beta<em>₂=(10dB)㏒₁₀(2.04×10¹⁰)</em>

<em />\beta<em> =(10dB)[㏒₁₀(2.04)+㏒₁₀(10¹⁰)]=10dB[0.32+10]=103dB=100dB</em>

<em />

3 0
3 years ago
Use the graph above to determine the change in speed of the object between 20 and 30 seconds?
allsm [11]

Answer:

6 m/s

Explanation:

To determine the change in speed of the object, we just need to determine its speed at t = 30 s and at t = 20 s, and then calculate the difference.

The speed at t = 30 is:

v = 6 m/s

While the speed at t = 20 s is:

u = 0

Therefore, the change in speed is:

\Delta v = v-u=6-0 = 6 m/s

4 0
3 years ago
Read 2 more answers
A car engine has___ power than a horse because a car engine does the same amount of work in___ time. Yasmin and Raj each had 10
Natalka [10]

More

Less

Less

More....

6 0
3 years ago
Read 2 more answers
3. The direction of the centripetal force acting on a ball on a string being spun in a circle around a person is
ruslelena [56]

D. center seeking. Good Luck

4 0
3 years ago
Read 2 more answers
The map of the world is overlaid with the boundaries of the tectonic plates. Look at the location marked with an asterisk (*). W
Sholpan [36]
<span>C) mountains; two continental plates meet at a convergent boundary</span>
6 0
3 years ago
Other questions:
  • A mans walks 200 meter on 20 seconds. What is the man speed?
    9·2 answers
  • Eric has a mass of 60 kg. He is standing on a scale in an elevator that is accelerating downward at 1.7 m/s². What is the approx
    6·1 answer
  • A block of mass, m = 10 kg, starts at the top of a frictionless track which forms a quarter circle of radius r = 10 m. It is giv
    8·1 answer
  • If we double the diameter of a telescope's mirror, what happens to its light-gathering ability? View Available Hint(s) If we dou
    14·1 answer
  • A baseball player (hitter) hits the ball with her bat. The ball flies north at an angle a above ground and with an initial speed
    14·1 answer
  • An object on the end of a spring with spring constant k moves in simple harmonic motion with amplitude A and frequency f. Which
    5·1 answer
  • Si un astronauta tiene una masa de 72kg si el valor de g en la luna es 1.6m/s2, ¿cual es la fuerza gravitacionar de la luna sobr
    7·1 answer
  • How do positive charges in an electric field move?
    7·1 answer
  • How many times does the light beam shown in FIGURE 26-59 reflect from (a) the top and (b) the bottom mirror?
    5·1 answer
  • One Affective way to develop the feeling function in one’s personality is to
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!