What resultant force would accelerate an 810kg mass at 6.7 m/s squared?

Aseries circuit consists of a resistor with r = 20 ? , a capacitor with c = 0.01 f, and a decaying battery with e = 300e? 5t. if the initial charge is 0, find the charge as a function of time t

Looking at this barometer, is the air pressure high or low? what type of weather would you expect? high, bad low, bad high, good low, good

Explain why electric current cannot exist if a current doesn't have a voltage source.