A storage heater contains concrete bricks which heat up at night and slowly release their heat the following day
The bricks have a mass of 20 kg and they have 480 000 J of heat
energy transferred to them overnight.
Calculate the maximum temperature rise of the bricks.

b. lifting dumbbell weight at 20-degree angle from the body after a 45-degree angle

electric field is a function of 1/r^2

yes, the force per unit charge for a point charge is inverse square law.

= initial pressure

= final pressure = 2

= initial volume

= final volume = /4

= initial temperature = 20 c = 20 + 273 = 293 k

= final temperature = ?

using the equation