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Jan
12
reviewed Reviewed Would connecting p-type and n-type semiconductors work as a diode?
Dec
27
reviewed Reviewed Relativity of simultaneity subtle example
Dec
27
reviewed No Action Needed Why the total nuclear spin is only 0 or 2 for singlet s-wave scatting with $M_F=0$?
Dec
27
reviewed Reviewed Which force makes a wheel roll down the hill? What causes friction?
Dec
26
reviewed Reviewed Free fall and gravitational time dilation
Dec
23
reviewed No Action Needed Does less heat equals more reflexion?
Dec
15
reviewed Reviewed For an object in circular motion, does speed affect the amplitude of sound it creates?
Dec
14
reviewed Reviewed A question about gravity
Dec
14
reviewed Reviewed If energy can neither be created nor be destroyed,what is the ultimate source of energy?
Dec
14
revised Detailed form of light waves in vacuum and how to test it experimentally?
clarified question according to comment.
Dec
14
suggested approved edit on Detailed form of light waves in vacuum and how to test it experimentally?
Dec
10
comment Light and mirrors
Yes. This conservation of momentum is the reason. Photons also have a momentum. Further information is given by quantum theory.
Dec
2
reviewed Reviewed Lift provided to an aeroplane
Nov
27
reviewed Reviewed Why $k/m$ in simple Harmonic motion equal $\omega^2$?
Nov
24
reviewed Reviewed Luminous intensity: from Volt to Candela/m2
Nov
23
reviewed No Action Needed Worthington jets explanation: fluid phenomenon
Nov
23
comment Finding the force required to center the cone
3 kN plus friction forces. You didn't define surface of youd mild steel.
Nov
18
reviewed No Action Needed Why is the blue line in the Balmer series sometimes not visible?
Nov
18
reviewed No Action Needed If time is like space, why entropy always increases with time?
Nov
4
reviewed No Action Needed Special relativity, calculate velocity