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Power: The rate of doing work is called power, and it is defined as the work done in unit time. As a formula, this would be: power = work done/time Taken Power is exp
The work done by a friction force is: a) Always positive b) Always negative c) Always zero d) Either positive or negative depending upon the situation. An
A certain spring is known to obey Hooke's Law. If a force of 10 newtons stretches the spring 2 meters, how far will a 30 newton force stretch the spring? Ans: A certain spr
Question: What is the colour of the shortest wavelength observable light? Answer: Keeping in mind the actuality that the higher the frequency the shorter the waveleng
why friction is called a necessery evil?
application of direct and indirect trasition
Paschen series: The series that describes the emission spectrum of hydrogen while the electron is jumping to the third orbital. All lines are in the infrared portion of the sp
As a pendulum is raised to higher altitudes, its period: a) Increases b) Decreases c) Remains the same d) Decreases, and then remains the same Ans: When
In Thomson's effect we pact with only metallic rod and not with thermocouple as in Peltiers effect and Seebeck's effect. (That's why sometimes it is called as homogeneous thermo el
The mass of an automobile is 1140kg, and the distance between its front and rear axles is2.48 m. The center of gravity of theca is between the front and rear tires, and the horizon
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