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
madreJ [45]
3 years ago
15

A helium tank holds a volume of .02 m^3 at a pressure of 15.5*10^6 Pa and a temperature of 293 K. How many spherical balloons wi

th a radius of .11 m can be filled with this much helium if the temperature remains constant?
Answer unit is Balloons
Physics
1 answer:
lukranit [14]3 years ago
7 0

Answer:

Explanation:

We shall find the volume of stored gas at atmospheric pressure .

P₁ V₁ = P₂ V₂

15.5 x 10⁶ x .02 = 10⁵ x V₂  ( atmospheric pressure is 10⁵ Pa )

V₂ = 3.1 m³

volume of one balloon = 4/3 x π r³ , r is radius of balloon

= 4/3  π x .11³

= .050658 m³

no of balloon = total volume to be filled / volume of one balloon

= 3.1 / .050658

= 61 .2

= 61

You might be interested in
If a rat with a mass of 2.67 kg is being held at a height of 4.83 m, what is its potential energy?
Rom4ik [11]

Answer:

128.96J

Explanation:

Take g = 10m/s²

Ep = mgh

= 2.67 × 10 × 4.83 = 128.96 J

7 0
3 years ago
Chứng minh V=kq/r từ mối liên hệ giữ E và V
Marat540 [252]

Answer:V=Aq=KQr

Explanation:

Không biết V bạn kí hiệu ở đây là gì nhỉ? Có phải là điện thế?

Điện thế tại 1 điểm trong điện trường được định nghĩa là công làm vật dịch chuyển từ vị trí đó đến vô cùng. V = A/q

Chứng minh thì được, nhưng chỉ e bạn không có hiểu biết về nguyên hàm, tích phân nên không hiểu.

- Xét tại vị trí cách điện tích Q một đoạn x, khi đó điện tích q sẽ chịu 1 lực: dF=KQ.qx2

Điện tích q dịch chuyển 1 khoảng dx rất nhỏ. Khi đó công do lực điện trường gây ra là:

dA=dF.dx=KQ.qx2dx

Công để dịch chuyển điện tích q từ vị trí r đến vô cùng là:

A=∫∞rdA=∫∞rKQ.qx2dx=KQ.qr−KQ.q∞=KQ.qr

Theo đúng định nghĩa: V=Aq=KQr

4 0
3 years ago
A high-speed train in Japan travels a distance of 300. kilometers in 3.60 x 103 seconds. What is the average speed of this train
sergiy2304 [10]

Answer:

The average speed is 83.3 m/s

Explanation:

5 0
3 years ago
A ball is dropped from the rest from a high window of a tall building and called for 4 seconds. Neglecting air resistance, the f
diamong [38]

Answer:

-39.2m/s

Explanation:

Given that :

t = 4secs

g = -9.8m/s^2

v = ?

u = 0m/s ( since it was at rest )

V = u +at............. 1

Where v is the final velocity

a = -g = -9.8m/s^2 since the ball was dropped from a height which will eventually make it move against gravity

t = 4secs

Substitute the values into 1

v = 0 - 9.8×4

v = -39.2m/s

3 0
3 years ago
n a ballistics test, a potato gun shoots a 0.34 kg potato into a 5.0 kg catching cart. The cart recoils at 3.7 m/s after catchin
Gala2k [10]

The initial velocity of the potato is 54.41 m/s.

The given parameters:

  • <em>Mass of the potato, m = 0.34 kg</em>
  • <em>Mass of the cart, m = 5.0 kg </em>
  • <em>Velocity of the recoil, u₂ = 3.7 m/s</em>

<em />

The initial velocity of the potato is calculated by applying the principle of conservation of energy as follows;

m_1u_1 = m_2 u_2\\\\u_1 = \frac{m_2 u_2}{m_1} \\\\u_1 = \frac{5 \times 3.7}{0.34} \\\\u_1 = 54.41 \ m/s

Thus, the initial velocity of the potato is 54.41 m/s.

Learn more about conservation of linear momentum here: brainly.com/question/7538238

6 0
3 years ago
Other questions:
  • A student ties down one end of a length of rope, then moves the other end back and forth rapidly. The wave that results in the r
    12·2 answers
  • A cup of coffee is considered a Blank Space __________.
    10·1 answer
  • Explain how the applied force and area which the force acts affect the pressure
    7·1 answer
  • A concave mirror has a focal length of 20 cm.
    9·1 answer
  • To a stationary observer, a bus moves south with a speed of 12 m/s. A man
    7·1 answer
  • A ball is tossed with enough speed straight up so that it is in the air several seconds. (a) What is the velocity of the ball wh
    13·1 answer
  • The statement “Harvard University is a better school than the University of Chicago” is an example of
    14·2 answers
  • Convert 167 g to kilograms
    15·1 answer
  • Suppose you look at a spectrum of visible light by looking through a prism or diffraction grating. How can you decide whether it
    15·1 answer
  • What type of device forms images by changing the speed at which light
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!