Calculate the bond dissociation energy for the breaking of all the bonds in a mole of methane

What is the average speed of a car that travels 40mph for 1 hour and 60 mph in another hour will mark brainliest

The amount of potential energy possessed by an elevated object is equal to what?

Asmall 12.00g plastic ball is suspended by a string in a uniform, horizontal electric field with a magnitude of 10^3 n/c. if the ball is in equilibrium when the string makes a 30 ° angle with the vertical, what is the net charge on the ball?