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
Kamila [148]
4 years ago
8

The cross-section of a pipe has an area of 2.0 cm2. Calculate the flow rate (in grams per second) of a liquid with p=1.0 g/cm3 t

hrough the pipe if the flow speed is 42 cm/s.
a. 46 g/s
c. 80 g/s
b. 76 g/s
d. 84 g/s
Physics
1 answer:
Maurinko [17]4 years ago
4 0
<span> flow rate = velocity of fluid x area of cross section x density 
                = 42 x 2 x 1 = 84 g/s</span>
You might be interested in
how much centripetal force is needed to make a body of mass 0.5 kg to move in a circle of radius 50 cm with a speed 3ms-1
Alex17521 [72]

Answer:

9 N

Explanation:

The centripetal force F is F = mrω^2 = (mv^2)/r where m is mass, r is radius of the curve, ω is angular velocity and v is tangential velocity.

In this case, m = 0.5kg, r = 0.5m, v = 3m/s

So F = [0.5kg(3m/s)^2]/0.5m = 9kg-m/s^2 which is 9N

6 0
3 years ago
Read 2 more answers
Ford used to make a 7.0 liter engine. Calculate how many many cubic inches would be the same size engine.
Anestetic [448]

Answer : The volume of engine in cubic inches is, 427.166\text{ inch}^3

Explanation :

As we are given that the volume of engine is, 7.0 liters. Now we have to calculate the volume of engine in cubic inches.

Conversion used :

1\text{ liter}=1000cm^3

So, 7\text{ liter}=7000cm^3

1\text{ inch}=2.54cm

or,

1cm=\frac{1}{2.54}\text{ inch}

1cm^3=(\frac{1}{2.54}\text{ inch})^3

As,

1cm^3=(\frac{1}{2.54}\text{ inch})^3

So,

7000cm^3=\frac{7000cm^3}{1cm^3}\times (\frac{1}{2.54}\text{ inch})^3=427.166\text{ inch}^3

Thu, the volume of engine in cubic inches is, 427.166\text{ inch}^3

3 0
3 years ago
eva is a food scientist. she constantly researches on developing new and effective food techniques. She is exposed to various ty
Crazy boy [7]

Answer:

ANSI

Explanation:

3 0
3 years ago
A 55 kg cheerleader uses an oil-filled hydraulic lift to hold four 110 kg football players at a height of 1.0 m. If her piston i
AVprozaik [17]

Answer:

D = 55.2 cm

Explanation:

As we know that the total mass of the all four players is given as

M = 4\times 110

M = 440 kg

diameter of the piston of cheer leader is given as

d_1 = 16 cm

are of cross-section is given as

A_1 = \pi r^2

A_1 = \pi(0.08)^2 = 0.02 m^2

mass of the cheer leader is given as

m = 55 kg

so the pressure due to cheer leader is given as

P_{in} = \frac{mg}{A_1}

P_{in} = \frac{55 \times 9.81}{0.02}

P_{in} = 26835 Pa

Now on the other side pressure must be same

so we have

\frac{Mg}{A} + \rho gH = P_{in}

\frac{440 \times 9.8}{A} + (900)(9.8)(1) = 26835

A = 0.24 m^2

\pi r^2 = 0.24

r = 0.276 m

so diameter on the other side is given as

D = 2 r

D = 55.2 cm

8 0
3 years ago
A ship
Juli2301 [7.4K]

Answer:

<em>The sea bed is 1125 m deep.</em>

Explanation:

<u>Speed</u>

It's the rate of change of the distance (d) traveled by an object over time (t).

The speed can be calculated by the formula:

\displaystyle v=\frac{d}{t}

It's known the speed of sound in water is v=1500 m/s. A sound wave is sent to the sea bed and bounces back to the ship 1.5 seconds later.

That is the time the wave takes to travel twice the distance from the ship to the sea bed, thus the required distance uses half of that time or t=1.5/2 = 0.75 seconds.

Solving the equation for d:

d = v.t

d = 1500 m/s * 0.75 s

d = 1125 m

The sea bed is 1125 m deep.

4 0
3 years ago
Other questions:
  • . If 540.0 mL of nitrogen at 0.00 °C is heated to a temperature of 100.0 °C what will be the new volume of the gas?​
    5·2 answers
  • What particles exist within plasma that do not exist in other states?
    11·1 answer
  • Caleb is often described as absent-minded or forgetful. He would likely benefit from
    14·1 answer
  • One car has two and a half times the mass of a second car, but only half as much kinetic energy. When both cars increase their s
    9·1 answer
  • The specific heat of silver is 0.057 calories/gram°C. If 10.0 grams of silver were heated and the temperature of the sample chan
    12·2 answers
  • Does uniform circular motion have constant acceleration?
    11·1 answer
  • A country creates a park to protect a forest, what type of resource?
    8·1 answer
  • Please help me with the blanks
    10·2 answers
  • Tabitha knows the redshift value of a particular celestial object. What can she use this information most directly to find out?
    9·1 answer
  • Radiation in the ultraviolet region of the electromagnetic spectrum is quite energetic. It is this radiation that causes dyes to
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!