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
Alex17521 [72]
3 years ago
15

Flyer denna jetpack flyer when i leave

Engineering
1 answer:
HACTEHA [7]3 years ago
8 0

Answer:

I this a working or u just wanna text?

You might be interested in
What's the third pedal for in a vehicle​
pshichka [43]

Manual Transmission Cars typically have 3 pedals which are

1) Brake Pedal

2) Gas / Acceleration Pedal

3) Clutch Pedal

6 0
4 years ago
The diffusion coefficients for species A in metal B are given at two temperatures:
Kruka [31]

Answer:

a) 149 kJ/mol, b) 6.11*10^-11 m^2/s ,c) 2.76*10^-16 m^2/s

Explanation:

Diffusion is governed by Arrhenius equation

D = D_0e^{\frac{-Q_d}{RT} }

I will be using R in the equation instead of k_b as the problem asks for molar activation energy

I will be using

R = 8.314\ J/mol*K

and

°C + 273 = K

here, adjust your precision as neccessary

Since we got 2 difusion coefficients at 2 temperatures alredy, we can simply turn these into 2 linear equations to solve for a) and b) simply by taking logarithm

So:

ln(6.69*10^{-17})=ln(D_0) -\frac{Q_d}{R*(1030+273)}

and

ln(6.56*10^{-16}) = ln(D_0) -\frac{Q_d}{R*(1290+273)}

You might notice that these equations have the form of  

d=y-ax

You can solve this equation system easily using calculator, and you will eventually get

D_0 =6.11*10^{-11}\ m^2/s\\ Q_d=1.49 *10^3\ J/mol

After you got those 2 parameters, the rest is easy, you can just plug them all   including the given temperature of 1180°C into the Arrhenius equation

6.11*10^{-11}e^{\frac{149\ 000}{8.143*(1180+273)}

And you should get D = 2.76*10^-16 m^/s as an answer for c)

5 0
3 years ago
I am trying to make a vacuum cannon but all I can use to get out the air is a speed pump to give air to bicycles. I need to make
Mrrafil [7]

We can actually deduce here that making a airtight seal will take different format. You can:

  • Use an epoxy-resin to create an airtight seal
  • Create a glass-metal airtight seal
  • Make a ceramic-metal airtight seal.

<h3>What is an airtight seal?</h3>

An airtight seal is actually known to be a seal or sealing that doesn't permit air or gas to pass through. Airtight seal are usually known as hermetic seal. They are usually applied to airtight glass containers but the advancement in technology has helped to broaden the materials.

We can see that epoxy-resin can used to create an airtight seal. They create airtight seals to copper, plastics, stainless steels, etc.

When making glass-metal airtight seal, the metal should compress round the solidified glass when it cools.

Learn more about airtight seal on brainly.com/question/14977167

#SPJ1

6 0
1 year ago
What are the disadvantages of having a liquid cooled engine?
Feliz [49]
One notable disadvantage of liquid cooling over air cooling is that it is considerably costly to set up. Cooling fans are prevalent in the market, and this overabundance of supply means they are cheap. The components of a liquid cooling system can be expensive.
5 0
3 years ago
QUESTION:
pentagon [3]
74 cycles it’s what u need
7 0
3 years ago
Other questions:
  • When circuit switching is used, what is the maximum number of circuit-switched users that can be supported? Explain your answer
    6·1 answer
  • Consider a system with two tasks, Task1 and Task2. Task1 has a period of 200 ms, and Task2 has a period of 300 ms. All tasks ini
    5·1 answer
  • Thermal energy storage systems commonly involve a packed bed of solid spheres, through which a hot gas flows if the system is be
    13·1 answer
  • A well penetrates an unconfined aquifer. Prior to pumping, the water level (head) is 25 meters. After a long period of pumping a
    14·1 answer
  • Lately, you have noticed some repetitive stress in your wrist. Which sign is most likely the cause of that stress and pain?
    7·1 answer
  • Using the idea of mass and change of speed... could a bowling ball be thrown so fast that it has the same force as a car driving
    7·1 answer
  • All of the following are categories for clutch covers except
    11·1 answer
  • Steam enters a heat exchanger at a pressure of 1.5 bar and a temperature of 400°C with a mass flow rate of 0.05 kg/s and exits a
    11·1 answer
  • Nitrogen gas is compressed at steady state from a pressure of 14.2 psi and a temperature 60o F to a pressure of 120 psi and a te
    7·1 answer
  • I will put other link in comments
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!