> Try to conduct electricity for your whole home using domestic waste.
> A home made small washing machine to wash small clothes like socks
Answer:
perpetual motion machine of second type is a machine that generates job from a single source of heat.
Explanation:
perpetual motion machine is a machine that generates job from a single source of heat. only one heat reservoir is present in this type of machine and it is continuously cooled to generate function without transferring heat to a cooler reservoir. Such a demonstration machine was names as ammonia engine
Answer:
B. The thickness of the heated region near the plate is increasing.
Explanation:
First we know that, a boundary layer is the layer of fluid in the immediate vicinity of a bounding surface where the effects of viscosity are significant. The fluid is often slower due to the effects of viscosity. Advection i.e the transfer of heat by the flow of liquid becomes less since the flow is slower, thereby the local heat transfer coefficient decreases.
From law of conduction, we observe that heat transfer rate will decrease based on a smaller rate of temperature, the thickness therefore increases while the local heat transfer coefficient decreases with distance.
Answer:
a.
Here independent variable is negative reinforcement like punishment. The dependent variable is aggressiveness.
Control group : Teacher
Experiment group : Students
b.
Independent variable : Exercise
Dependent variable : Depression
Various levels of independent variables : The time of exercise may be increased or reduced
c.
Independent variable: Environment friendly messages
Dependent variables : Environment friendly behavior
Interaction: The verbal exchange among the peers.
Answer:
professionl engineering means and individual who has fufilled academic and experience requirements and permitted by government to offer engineering services directly to the public
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