A200.0 g copper block absorbs 2.34 × 10^3 j of heat to raise its temperature by 30.0 k. what is the specific heat of copper? show your work/all the steps.

0.39 Jg/K

Explanation:

Q = heat gained =

m = mass of the substance = 200 g

c = heat capacity of copper = ? J/g ° C      

Thus specific heat of copper is 0.39 Jg/K.

the answer is b, have negligible mass

it's when something is going so fast it makes a loud noise, breaking the sound barrier, for example: a jet makes a loud noise, not only cause of the jet but because they reached a point where they went so fast that you can year the noise from various parts, kinda like a police car, lets say the car was going   so fast that you hear the siren of the cop car right next to you, but the car is probably a mile a way, it's cos the siren was next to you a few seconds if you understand me