<span>Make the surfaces smoother. Rough surfaces produce more friction and smooth surfaces reduce friction. ...Lubrication is another way to make a surface smoother. ...Make the object more streamlined. ...Reduce the forces acting on the surfaces. ...<span>Reduce the contact between the surfaces.
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<h3><u>Answer;</u></h3>
Electromagnetic and transverse
<h3><u>Explanation</u>;</h3>
- Electromagnetic waves are types of waves which do not require material medium for transmission.
- Transverse waves are waves in which the vibration of particles is perpendicular to the direction of wave motion.
- All electromagnetic waves are transverse waves and travels with the speed of light. They include; gamma rays, x-rays, UV light, radio waves, and microwaves among others.
Answer:c>a>b
Explanation:
Given
All the engine extracts same amount of heat(Q) from High-temperature reservoir
For a) 400 and 500 K




For b)500 K and 600K


For c) 400 K and 600 K


So c will give the highest amount of work
c>a>b
You would want to increase the temperature.
The formula for Fahrenheit and Celsius conversion is
T(°F)<span> = </span>T(°C)<span> × 1.8 + 32
where T is temperature in F or C ( Fahrenheit or Celsius whatever is the case)
</span>This means that keeping this FORMULA in mind we can add different values to it and accordingly convert values from one to another.
Some examples of fahrenheit conversions to Celsius are :
32°F = 0°C using F = (0 x 1.8) + 32