A capacitor of capacitance 8.1x10-6 F is discharging through a 1.3 M Ω resistor. At what time will the energy stored in the capacitor be half of its initial value? Answer in seconds and upto 1 decimal place.

Aplane travels 1000 miles in 5 hours .what is the planes average speed?

This punnett square shows the cross between two pants. one parent has round seeds (rr). and the other parent has wrinkled seeds (rr) which best describes their offspring as shown in this cross?

A10nc charge sits at a point in space where the magnitude of the electric field is 1500 n/c. what will the magnitude of the field be if the 10 nc charge is replaced by a 20 nc charge? assume the system is big enough to consider the charges as small test charges.