The gold will heat up almost twice as fast. The specific heat of a metal tells us just how much calories is needed to change the temperature of a metal by 1 degree celsius. Given this, the smaller the specific heat of a metal, the faster it will heat up.
Answer:
A battery is a device that stores chemical energy and converts it to electrical energy. The chemical reactions in a battery involve the flow of electrons from one material to another, through an external circuit. The flow of electrons provides an electric current that can be used to do work.
The two factors are mass and distance between them.
Answer:
The acceleration of proton will be 
Explanation:
We have given electric field E = 450 N/C
Charge on proton 
Force on electron due to electric field is given by 
Mass of electron 
Now according to second law of motion 
So 

So the acceleration of proton will be 
Answer:
Solid - molecules are packed together, and it keeps its shape.
Liquids - take the shape of the container.
Gases - spread out to fill the container.