Answer:
R= 53.7 Ω
Explanation:
fc= 1/(2πRC)
3000=1/(2π× 1 × 10^-6 × R)
R= 53.7 Ω
Answer:
The main reason for this is the ingredients found in the paint. Different Ingredients are used to make different types of color paints, therefore when each of these paints is used in connection with the solvent the different chemicals in the paint create a certain reaction with the chemicals in the solvent, and each reaction may be different in each color depending on the chemical compound.
Answer: Advertising acts in a method similar to a fee. People who watch TV broadcasts must watch ADs. TV stations turn this into money by selling airtime to advertisers.
Explanation:
A non-rival good is a good whose consumption by one person does not reduce the remaining quantity available. An example is a street light.
For non-excludable goods, it is impossible to prevent everyone from enjoying the benefits of the good. An example is a lighthouse. This is where the free rider problem comes in.
A free rider is someone enjoying the benefits of a good without paying for it. When a good is both non-rival and non-excludable, it is convenient for consumers to enjoy the benefit without paying for it.
If TV broadcasts are both non-rival and non-excludable, everybody can choose to become a free rider. Advertising can solve this problem by converting free riders to potential buyers of goods or services advertised during broadcasts. This way, stations can generate revenue by selling airtime.
Answer:
Please select the correct statements concerning use of a centrifuge. (Select all that apply.)
(a) When placing test tubes in the centrifuge, what are the best practices?
- Wait until all positions on the rotor contain a test tube before activating the centrifuge.
- <u>Place test tubes containing approximately equal volumes in opposite positions on the rotor.</u>
- Carefully stopper the test tubes to ensure the liquids do not spill out.
- <u>Never put stoppers or other items in the centrifuge with your tubes</u>.
(b) When operating the centrifuge, students should do which of the following?
- <u>Make sure that the lid is completely shut and the safety knob is turned to engage the safety switch.</u>
- <u>Centrifuge for approximately 30 minutes</u>.
- Centrifuge for approximately 30 seconds.
- Mid-way through the process, open the lid of the centrifuge and check to be sure it is operating.
(c) When the centrifuge process is complete, students should do which of the following?
- <u>Using the eye-hole on top, monitor the spinning rate and open the lid only after the rotor has slowed significantly</u>.
- Immediately open the lid of the centrifuge to remove the test tubes before they are damaged.
- <u>Wait for the rotor to come to a complete stop before attempting to remove your test tubes</u>.
- Reach out and carefully slow the rotor with your hand so you may finish the lab faster.
Explanation:
I UNDERLINED and BOLD the answers that apply
Answer:
The correct option is;
Materials and Components
Explanation:
The efficiency of fluid power is influenced by the components and the materials used to deliver the power of the fluid as such fluid power control are focused on
1) Advances in fluid power
2) Making use of the advantages
3) Making use of the other externally available technological advantages
4) Giving allowance for disadvantages
Areas of interest in advances in fluid power are;
a. Computer optimized flow
b. The use of new and improved materials/coatings
c. The use of components that save energy, such as intelligent supply pressure adapting systems