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
dangina [55]
3 years ago
6

A helium weather balloon is filled to a volume of 219 m3 on the ground, where the pressure is 754 torr and the temperature is 29

8 K. As the balloon rises, the pressure and temperature decrease, so it is important to know how much the gas will expand to ensure that the balloon can uphold the expansion. What is the volume at an altitude of 10,000 m, where the atmospheric pressure is 210. torr and the temperature is 230 K?
Physics
1 answer:
Novosadov [1.4K]3 years ago
8 0

Answer:

V_2 = 606.9 m^3

Explanation:

By ideal gas equation law we know that

PV = nRT

now we know that when balloon rises to certain level then the number of moles will remains same

so we can say

n_1 = n_2

\frac{P_1V_1}{RT_1} = \frac{P_2V_2}{RT_2}

now plug in all data to find the final volume of the balloon

\frac{754\times 219}{R(298)} = \frac{210 \times V_2}{R(230)}

V_2 = \frac{230\times 754 \times 219}{210 \times 298}

V_2 = 606.9 m^3

You might be interested in
When an ice cube in a glass of water melts, the water level _____. A. remains the same B. rises C. falls
tensa zangetsu [6.8K]
A.  The water level Remains the same
6 0
3 years ago
Read 2 more answers
A dog runs down his driveway with an initial speed of 5 m/s for 8 s, and then uniformly increases his speed to 10 m/s in 5 s.
MakcuM [25]
Acceleration is given by change in velocity divided by change in time, so his acceleration should just be (10-5)/5 which is [tex] \frac{5}{2} \frac{m}{s^{2}} [tex]

The driveway is 40 meters plus 225/4. You can do the math.
8 0
3 years ago
A porter can carry 40 bricks of 10 N load of each. He can carry up to 75m in 40 sec, calculate his power.​
alexira [117]

Answer:

750W

Explanation:

40×10= 400N

work done= force × distance

=400 × 75

=30000 J

Power= work done/ time

= 30000 ÷ 40

= 750 W

4 0
1 year ago
                 All the processes that form mountain ranges are known as                
stepan [7]
All Mountains are built through a general process called "deformation" of the crust of the Earth. Deformation is a fancy word which could also mean "folding". An example of this kind of folding comes from the process described below. 

<span>When two sections of the Earth's lithosphere collide, rather than being subducted, where one slab of lithosphere is forced down to deeper regions of the Earth, the slabs pile into each other, causing one or both slabs can fold up like an accordion. This process elevates the crust, folds and deforms it heavily, and produces a mountain range. Mountain building and mantle subduction usually go together. </span>
3 0
3 years ago
2. Find the time taken by the bus to reach the stop. need only group B, 2 answer
Molodets [167]

Answer:

t = 2 seconds

Explanation:

In 2nd question, the question is given the attached figure.

Initial speed of the bus, u = 0

Acceleration of the bus, a = 8 m/s²

Final speed, v = 16 m/s

We need to find the time taken by the car to reach the stop. Acceleration of an object is given by :

a=\dfrac{v-u}{t}

t is time taken

t=\dfrac{v-u}{a}\\\\t=\dfrac{16-0}{8}\\\\t=2\ s

The bus will take 2 seconds to reach the stop.

3 0
3 years ago
Other questions:
  • Which type of energy is stored in a stretched string on the bow in the following figure ​
    6·2 answers
  • A box weighing 4.0 N is lifted 3.0 meters. How much work is done on the box?
    14·1 answer
  • Stand on a bathroom scale on a level floor, and the reading on the scale shows the gravitational force on you, mg. If the floor
    6·1 answer
  • Physical science question please help
    11·1 answer
  • Kenya has a pile of salt on the counter. She uses a pinch of it for a meal. Which of the following physical properties of the sa
    14·1 answer
  • Describe how a change in resistance would affect the current in a circuit.
    5·1 answer
  • How are the interference patterns for light through a double slit and light through a single slit similar yet different
    5·1 answer
  • In an early attempt to understand atomic structure, Niels Bohr modeled the hydrogen atom as an electron in uniform circular moti
    9·1 answer
  • Find the scaler product of this two vector
    7·1 answer
  • How do stars die?<br> Pls help
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!