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37 m, 12° W of N + –65 m, –200°
A 7.5 kg object on a rough surface with coefficient of kinetic friction 0.1 is pulled by a constant tension 60 N directly to the right. If the mass started at rest, how far does it go after 5 s
seconds?
An ion accelerated through a potential difference of 115V experiences
an increase in potential energy of 7.37×10-17J.
Calculate the charge on the ion.
Explain how, using a capacitor in conjunction with a gold-leaf electroscope, the voltage sensitivity
of the electroscope may be increased.
How much work is required to carry a 0.02μC charge from point r=40cm to that at r= 5cm
Two capacitors of capacitance 3uF and 4uF respectively, are connected in parallel with batter of emf of 220volts. The connections are broken and the like terminals of the capacitors are joined. Find the final charge on each capacitor (L)
Explain how, using a capacitor in conjunction with a gold leaf electroscope, the voltage sensitivity of the electroscope may be increased
Compare and Contrast electrostatic electric field and non electrostatic/induced electric field.
Water from a leaking tap begins to fall into an empty tank 0.5m wide by 2m long by 4m height .If the drops fall at a rate of 2 drops per second,and if each drops weighs 0.05g .After how many seconds will the pressure at the bottom of the tank be 400Pa.[density of water =1000kg/ms g= 10m/s ]
A piece of metal of density 7.8 * 10^3 weighs 20N in air, calculate it's weight when completely immersed in a liquid of density 8.3 * 10^3
