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Answer:
=118.8 K= 154.2°C
Explanation:
COP_max of carnot heat pump=
where T_H and T_C are temperatures of hot and cold reservoirs
Also COP=
in the question
⇒
heat is added directly to be as efficient as via heat pump
and T_H= 24° C= 297 K
on calculating the above equation we get
=118.8 K
the outdoor temperature for efficient addition of heat to interior of home
=118.8 K= 154.2°C
Answer:
Explanation:
Force can be found by multiplying the mass by the acceleration.
The mass of the roller coaster is 2000 kilograms and the acceleration is 2 meters per second squared.
Substitute the values into the formula.
Multiply.
- 1 kg*m/s² is equal to 1 N
- Therefore our answer of 4000 kg*m/s² is equal to 4000 Newtons
The net force acting on the roller coaster is <u>4000 Newtons.</u>
The answer is oil and water. If you want I could give you the reason too
To determine the centroid of the object first moment of area is used.
To predict the resistance of a shape to bending and deflection which are directly proportional, second moment of area is used.