What is ultrasonic sound?
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I have energy of (220V*1A=)220W. I want to convert it into (12V*15A=)180W. Is this possible? If yes, then how?
What cycle most directly describes the working cycle of a heat engine operating as an ideal engine of maximum thermal efficiency?
What is a Pressure ?
we know when two atom combine,the electrions are in valance band,but in case of semiconductor doner or acceptor level are above of v.. whyb
Giraffe in Arabic means "the highest of all." The height of a giraffe is an average of 5 m, its mass is about 800 kg and hooves is an area of approximately 625 cm2. Using a straw from a material nedeformabil a giraffe trying to drink water from a lake, not to condescend. What is the ratio of the minimum pressure to be applied giraffe, mouth, at the end paiului to drink water and pressure of giraffe on the ground. The density of water. g = 10 m/s2
Why is it that sound waves are not normally considered as having particle-like properties, nor raindrops as having wave-like properties? : quantum physics
Give one advantage of a scanning electron microscope over a transmission electron microscope?
Explain what is the proper formula used to calculate acceleration?
A man asks his friend to meet him at the airport at 3.00pm,to drive him to an appointment.he catches an earlier plane,and arrives at the airport at 2.00pm.he decides to start walking and is picked up en route by his friend.he arrives twenty minutes early for his appointment.how long did he walk?
Why does water boil at 100oC ?
What are the essential characteristics of a wave?
laser is an acronym for light amplification by