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
Pepsi [2]
3 years ago
9

A balloon has a volume of 10,500 liters, and the temperature is 15°C. If the temperature were -25°C, what would the volume of th

e balloon be? 12,194 L 9,042 L
Physics
1 answer:
svlad2 [7]3 years ago
6 0
According to Charle's law; the volume of a fixed mass of a gas is directly proportional to the absolute temperature at constant pressure.
VT= a constant
V1/T1 = V2/T2
V1 = 10,500 liters, T1= 15+273 =288 K; V2= ?, T2 = -25 +273 = 242 K
10,500/288 = V2/242
 V2 = (10,500 ×242)/288
      = 8822,92 Liters
 Therefore; the new volume of the balloon will be 8823 Liters
You might be interested in
AAAAAAAAAH
Dimas [21]

Answer:

l and lll

Explanation:

4 0
3 years ago
Read 2 more answers
How long must a 400w electrical engine work in order to produce 300kj of work
vladimir1956 [14]

Answer:

300000 J / 400 J/s = 750 s = 12.5 minutes

Explanation:

8 0
2 years ago
The driver of a car traveling at 22.8 m/s applies the brakes and undergoes a constant deceleration of 2.95 m/s 2 . How many revo
a_sh-v [17]

Answer:

70 revolutions

Explanation:

We can start by the time it takes for the driver to come from 22.8m/s to full rest:

t = \Delta v/a = (22.8 - 0)/2.95 = 7.73 s

The tire angular velocity before stopping is:

\omega_0 = v/r = 22.8 / 0.2 = 114 rad/s

Also its angular decceleration:

\alpha = a / r = 2.95/0.2 = 14.75 rad/s^2

Using the following equation motion we can findout the angle it makes during the deceleration:

\omega^2 - \omega_0^2 = 2\alpha\Delta \theta

where \omega = 0 m/s is the final angular velocity of the car when it stops, \omega_0 = 114rad/s is the initial angular velocity of the car \alpha = 14.75 rad/s2 is the deceleration of the can, and \Delta \theta is the angular distance traveled, which we care looking for:

-114^2 = 2*(-14.75)*\Delta \theta

\Delta \theta = 440rad or 440/2π = 70 revelutions

4 0
3 years ago
Which wavelength produces fluorescence? Why do you think this wavelength produces fluorescence while the other does not?
Maurinko [17]

Answer:

Long wavelength

Explanation:

Wavelengths that corresponds to the bands of blue and red are strongly absorbed whereas the wavelengths that lie in the mid-range corresponds to green light that are absorbed weakly.

Fluorescence produced is always directed towards longer wavelengths of the spectra as compared to the corresponding spectra for absorption.

4 0
3 years ago
A balloon-powered car rolls across the floor at a speed of 0.711 m/s. How long does it take to cover 8.25 m?
devlian [24]

Answer:

Time = 11.60 seconds.

Explanation:

Speed can be defined as distance covered per unit time. Speed is a scalar quantity and as such it has magnitude but no direction.

Mathematically, speed is given by the equation;

Speed = \frac{distance}{time}

Given the following data;

Speed = 0.711m/s

Distance = 8.25m

To find the time;

Making time the subject of formula, we have;

Time = \frac{distance}{speed}

Substituting into the equation, we have;

Time = \frac{8.25}{0.711}

Time = 11.60 secs.

5 0
3 years ago
Other questions:
  • The molecules of a gas are in constant random motion. This means that they have energy in what type of energy store?
    11·1 answer
  • A major leaguer hits a baseball so that it leaves the bat at a speed of 31.3 m/s and at an angle of 36.7 ∘ above the horizontal.
    14·1 answer
  • Which of the following would be more likely to utilize capitalism-based land management methods?
    10·2 answers
  • An empty office chair is at rest on a floor. Consider the following forces:. 1. A downward force due to gravity;. 2. An upward forc
    7·1 answer
  • How do vibration produce sound?
    7·2 answers
  • Which property of a filled balloon would be unchanged on the moon where there's no air and less gravity? A. mass B. weight C. vo
    7·2 answers
  • Give two examples of workplace environments where considerations must be made with respect to the possibility of electric discha
    9·1 answer
  • Pls help i have test
    13·2 answers
  • Which of the following is not a longitudinal
    8·2 answers
  • You are an astronomer and are making observations about a visible but faraway galaxy. Describe what evidence you could gather to
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!