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How much is the capacitance if the voltage is 40 V and the equivalent charge of the circuit is 2 C?
The image above is a neat copy of a photo of an electricity meter for a domestic solar array. The display shows the energy we sold to the electricity company on a winter's day. Between 7 a.m. and 5 p.m., how many kilowatt hours did this household sell to the electricity company? E =
E= _____ kW.hrs
. Give your answer to two significant figures.
Each box is 100 W
high and 1 hr
wide.
A curling stone is given an initial velocity of 18.4m/s across ice rink. If the coefficient of friction between the stone and the ice s 0.054, how far will the stone travel before it comes to a stop.
Determine the charge in each capacitor and the voltage across each capacitor in circuit B
Given : V3=5V
A=-5i+6j-5k
B=7i+8j+4k
Find A×B
A solenoid of length 2.2m has a diameter of 0.9. The magnetic field at its centre is 0.4tesla . estimate the energy stored in the field of this coil.
A small sphere of charge +6×10^-6 C is suspended by a string of negligible mass. A charge of -9.0×10^-6 C is placed directly to the right of the sphere and 0.22m away from it. The string is deflected 5^0 from the vertical. Find the tension in the string.
a satellite of mass 200kg is displaced by a distance of 2re from a point on the earths surface,whwre re is the radius of the earth. calculate the work done on the satellite by the force of gravitation. take the valus of the constants in your calculation from the astrophysical data given in the course
A car of 700 kg moving with a velocity of 10 m/s. A motor bike of 120 kg also moving with same speed in the same direction lying behind 10 meter from the car. What is there collision velocity?
A 2.5 kΩ resistor dissipates 0.5 W. The energy by this resistor in 3 minutes is _________.
