A body is dropped from a tower of height 96 m. Another body is thrown up from the ground after a second with a velocity of 40 m/s.When and where they will meet?
A body is dropped from a tower of height 96 m. Another body is thrown up from the ground after a second with a velocity of 40 m/s. When and where they will meet?
For the first body,
Let S=x (from top)
x=0.5 gt2 ————— (1)
For the second body,
96-x=40 t -0.5 gt2 ———–(2)
(1) + (2) =>
t=96/40 = 2.4 s
x= 0.5 g t2 =28.224 m from top (taking g = 9.8 m/s2)
What ere Eddy currents and what is their application?
Eddy currents (also called Foucault currents) are currents induced in conductors, when the magnetic flux linked with a solid conductor changes. The change in magnetic flux can cause a circulating flow of electrons, or a current, within the body of the conductor.
The term eddy current comes from analogous currents seen in water.
Eddy current adjustable-speed drives
Electric meters (Electromechanical Induction Meters)
Eddy current brakes
Proximity sensor (Displacement sensors)
Traffic Detection Systems
Vending machines (detection of coins)
Coating Thickness Measurements
Sheet Resistance Measurement
Eddy current separator for metal separation
Safety Hazard and defect detection applications
How much Ag can be deposited as uniform layer on a metallic vessel using 0.2 Ampere current passed through silver salt solution for 3 hours.(1 mol of Ag=108g)
SAN THOMAS ASKED
It is my understanding that when antimatter comes in contact with matter that there is nothing left but pure energy.
And since energy and matter are interchangeable (E=Mc2) doesn’t that mean you are actually left with all matter and no antimatter?
The equation E = mc2 tells about mass – energy relation and both matter and antimatter has a positive mass.