1). The little projectile is affected by friction all the way through the block.
Friction robs some kinetic energy.
2). The block is affected by friction as it scrapes along the top of the post.
Friction robs some kinetic energy.
3). The block is also affected by friction with the air (air resistance) as it
falls to the ground. Friction robs some kinetic energy.
Answer:
Electrons
Explanation:
Only Protons and Neutrons are found in the nucleus
I think the mantle is mostly made up of silicon. I am not sure of the answer.
Answer: It's 1 meat.
Explanation: Meat is a protein, bread and rice are grains, Apples are fruit!
Your welcome
Power = energy / time
Time should be in seconds
5 hours = 5 × 60 minutes = 5 × 60 ×60 seconds = 18000 s
Power = 6000/18000 = 0.333 W
Hope it helped!