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A soccer ball is kicked from a 22-m-tall platform. It lands 15 m from the base of the platform.
What is the net displacement of the ball?
Consider air (ideal gas) as working substance inside a piston-cylinder device (closed system). This air undergoes a power cycle as shown in figure. Determine work output per unit m
a particle of xkg pended by two light inextensible strings of AB and BC of lengths 8cm and 6cm respectively with the mass x attached to B. The end A and C are fixed at the same and
The earth's rotation about its axis changes measurably over time; You don't have to worry about the details; all you need to know is that our days are growing longer by about 2.3 m
Capacitors in parallel: Three capacitors are connected in parallel. If on closing the switch S a current I flows in the circuit, then from Kirchoff's first law:
Consider a bowling ball as well as a Ping Pong ball each moving along a straight line path at constant velocity. Which has the higher magnitude of momentum? Answer: One req
A force of 2.5kN is needed to lift a load. How much work is done if the load is lifted by 500cm? An electromagnet exerts a force of 12N and moves a soft iron armature by a dist
Q. Explain why does heated air expand? Answer:- Temperature is habitually defined as the average thermal energy of the substance at hand. Therefore the hotter a substance
The number of independent directions in which a system (or gas molecule) can have motion, are called as the number of degrees of freedom of that molecule or object. The number of d
Write short notes on the working of a thermopile. Illustrate working and construction of Dud dell's thermo galvanometer.
Q. What is artificial radioactivity? The phenomenon by which still light elements are made radioactive by artificial or induced methods is called artificial radioactivity. α
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