The plates of a spherical capacitor have radii 38.0 mm and 40.0 mm (a) calculate the capacitance. (b) what must be the plate area of a parallel-plate capacitor with the same plate separation and capacitance?

We put a force of 50n on an object and the acceleration is 100 m/s². what is the mass of the object?

A15.75-g piece of iron absorbs 1086.75 joules of heat energy, and its temperature changes from 25°c to 175°c. what is the specific heat capacity of iron?

This is a form of winter precipitation. it is frozen precipitation falling as ice pellets. snowflakes melt into raindrops as they pass through a thin layer of warmer air. the raindrops then refreeze into particles of ice when they fall into a layer of sub-freezing air near the surface of the earth. this precipitation is called a) hail. b) rain. c) sleet. d) snow.