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
Alenkinab [10]
3 years ago
12

The Chinese had a toy helicopter some 1000 years ago. True Or False ?

Engineering
1 answer:
Vadim26 [7]3 years ago
5 0

Answer:

f

Explanation:

for the lazy people

You might be interested in
Convert 0.025 in into mm.
malfutka [58]

Answer:  0.025 in = 0.065 mm

Explanation:  To convert the value in inches to mm we have to multiply the inches by the conversion factor 25.4.

So, 0.025 × 25.4 = 0.065 mm (millimeter)

Conversion formula for calculation in (inch) into mm is:

      Value in mm = Value in in × 25.4

  • One inch is equal to the 25.4 mm.
3 0
3 years ago
Read 2 more answers
If you are sampling a 50Hz signal, what is the minimum sampling rate necessary to prevent aliasing?Why?
horsena [70]

Answer:

100Hz

Explanation:

The minimum sampling rate to prevent aliasing is at least double your sample frequency.

50*2 = 100Hz

This is called the Nyquist Sampling Rate if you wanna learn more about it.

6 0
4 years ago
Serves as a protective barrier to prevent contact with engergized ("hot") parts<br> within the unit
erik [133]

Answer:

thanks hot hot

Explanation:

4 0
4 years ago
The density of a certain type of steel is 8.1 g/cm3. What is the mass of a 100 cm3 chunk of this steel
irina1246 [14]

Answer:

  810 g

Explanation:

Mass is the product of density and volume:

  m = ρV

  m = (8.1 g/cm³)(100 cm³) = 810 g

The mass of the chunk is 810 grams.

4 0
2 years ago
DUE AT 3:00!!!!!
emmainna [20.7K]
It is heat because that is what made the tires lose air
5 0
3 years ago
Read 2 more answers
Other questions:
  • If a ball is dropped from a height​ (H) its velocity will increase until it hits the ground​ (assuming that aerodynamic drag due
    5·1 answer
  • What is the name of the model/shape below?
    5·2 answers
  • Your coworker was impressed with the efficiency you showed in the previous problem and would like to apply your methods to a pro
    5·1 answer
  • What should one do with a load if one is going to leave a jack under a load?
    11·1 answer
  • Air is compressed steadily from 100kPa and 20oC to 1MPa by an adiabatic compressor. If the mass flow rate of the air is 1kg/s an
    12·1 answer
  • Select the correct answer <br><br> What is the simplest definition of a manufacturing process?
    5·2 answers
  • Workplace bullying can cause_____hazards.
    7·1 answer
  • Engineers designed a motorcycle helmet from a long-lasting and safe material that protects the wearer from accidents and excessi
    7·1 answer
  • Which step in the engineering design process does not come before building a<br> prototype?
    12·1 answer
  • Technician a says that personal protective equipment (ppe) does not include clothing. technician b says that the ppe used should
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!