Answer:
<em>Timing Belts </em>are components of internal combustion engines sinchronizing the handles and cranks rotation with the camshaft when operating its valves.
Internal combustion systems such as the ones found in cars for example, need a method to get the heat away from the system; the mechanical device set for that purpose is the <em>water pump</em>, which pushes coolant over the radiator, the hoses and engine block; that <em>water pump </em>is generally joint with the crankshaft pulley through those <em>timing belts</em>. Thereyby (A.)
Explanation:
Answer:
Isentropic compression in a pump, Constant heat addition in a boiler, Isentropic expansion in a turbine, constant heat rejection in a condenser
Explanation:
Ideal rankine cycle schematic diagram and T-S diagram is shown in below figure
The process 1-2 is isentropic compression is taking place in pump.
The process 2-3 is constant heat addition, heat addition takes places at boiler.
The process 3-4 is isentropic expansion, is taking place is turbine.
The process 4-1 is constant heat rejection , takes place in condenser.
Answer:
a.
b.
c.
d.
Explanation:
Given:
- angle of inclination of the surface,
- mass of the crate,
- Force applied along the surface,
- distance the crate slides after the application of force,
a.
<u>Work done by the worker who applied the force:</u>
since the direction of force and the displacement are the same.
b.
<u>Work done by the gravitational force:</u>
where:
g = acceleration due to gravity
h = the vertically downward displacement
Now, we find the height:
So, the work done by the gravity:
∵direction of force and displacement are opposite.
c.
The normal reaction force on the crate by the inclined surface:
d.
Total work done on crate is with respect to the worker:
A) A storage battery is charged using an electric current.
At the top, the roller coaster has a very large amount of potential energy. This amount of potential energy is present because the roller coaster is at a elevated place with respect to the ground. While the roller coaster goes down some of the potential energy is lost depending on the change in height and is converted to other energy. As the roller coaster is losing the potential energy, it gains some kinetic energy since this type of energy is dependent on the speed of the object moving and the mass. Therefore the answer i believe is where potential energy is converted to kinetic energy.