The flash of a camera uses a 3,0 volt battery to charge its capacitor. The capacitor is charged slowly, but the charge (and the energy) is released in a time of 10 µs when the button is pressed. (a) If the flash operates at a power of 10 W, how large capacitance should the capacitor have in order to make the flash function?
(b) In which ways could you improve the capacitance of the capacitor?
(c) Describe what happens in a capacitor if more charges are added to the capacitor plates than the dielectric medium allows (you might need to look this up from the internet).

I'm trying to figure this out, I'm just really confused where 10W or 10µs comes in :( Any help is so greatly appreciated!

Tom is having a problem with his washing machine. he notices that the machine vibrates violently at a frequency of 1500 rpm due to an unknown rotating unbalance. the machine is mounted on 4 springs each having a stiffness of 10 kn/m. tom wishes to add an undamped vibration absorber attached by a spring under the machine the machine working frequency ranges between 800 rpm to 2000 rpm and its total mass while loaded is assumed to be 80 kg a) what should be the mass of the absorber added to the machine so that the natural frequency falls outside the working range? b) after a first trial of an absorber using a mass of 35 kg, the amplitude of the oscillation was found to be 10 cm. what is the value of the rotating unbalance? c) using me-3.5 kg.m, find the optimal absorber (by minimizing its mass). what would be the amplitude of the oscillation of the absorber?