An object of mass 50kg is released from a height of 2m.Find the kinetic energy…
An object of mass 50kg is released from a height of 2m.Find the kinetic energy just before it…
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A boat travels due east at a speed 40ms-1s across a river flow due south…
A boat travels due east at a speed 40ms-1s across a river flow due south at 30ms-1s. What…
An object is projected with a velocity of 80ms-1 at an angle of 30o to…
An object is projected with a velocity of 80ms-1 at an angle of 30o to the horizontal.The maximum…
A motor vehicle is brought to rest from a speed of 15ms-1 in 20 seconds….
A motor vehicle is brought to rest from a speed of 15ms-1 in 20 seconds. Calculate the retardation.…
The primary winding of a transformer has 400 turns and its secondary has 100 turns….
The primary winding of a transformer has 400 turns and its secondary has 100 turns. If a source…
A light of energy 5eV falls on a metal and the electrons with a maximum…
A light of energy 5eV falls on a metal and the electrons with a maximum kinetic energy of…
If it takes 5.0 hrs to drain a container of 540.0cm3 of water, what is…
If it takes 5.0 hrs to drain a container of 540.0cm3 of water, what is the flow rate…
A 12V battery has an internal resistance of 0.5W.If a cable of 1.0W resistance is…
A 12V battery has an internal resistance of 0.5W.If a cable of 1.0W resistance is connected across the…
An electric current of 2 amperes flows in a heating coil of resistance 50 ohms…
An electric current of 2 amperes flows in a heating coil of resistance 50 ohms for 3 minutes…
If the maximum voltage across a 100ohms resistor is 20V, then the maximum power it…
If the maximum voltage across a 100ohms resistor is 20V, then the maximum power it can dissipate is…