A 9.00-V battery delivers a current of 1.26 A to the lightbulb filament of a pocket flashlight. (a) How much charge passes through the filament in 1.60 min?
(b) How many electrons pass through the filament?
(c) Calculate the energy delivered to the filament during that time. J
(d) Calculate the power delivered by the battery. .

A30 kg weight lies on top of a massless piston of area a = 0.01 m2 the exterior air is at a (constant) p =1 atm and t = 27 c. the interior gas is 0.4 moles of (ideal) n2 and it has initial temperature 27.00 degrees c. 1. what is the initial pressure in the interior? a. 29.4 kpa b. 130.7 kpa c. 101.3 kpa the next three questions concern what happens when an amount of heat q is slowly added to the interior, raising the piston by 1 mm and raising the interior temperature to 27.40 c

Awave is produced in a rope. the wave has a speed of 33 m/s and a frequency of 22 hz.

Which is the best predictor of the radioactive nature of an isotope? o the proton-to-electron ratio the neutron-to-proton ratio o the neutron-to-electron ratio the electron-to-proton ratio