Answer: C
Explanation:
Convective heat transfer, or convection, is the transfer of heat from one place to another by the movement of fluids, a process that is essentially the transfer of heat via mass transfer.
Recall that mass is the amount of matter present in a body. That means it's a property that is consistent regardless of the body's current location, gravity's pull on the body, etc.
Let's not confuse mass with weight (which is a force computed as Weight = mass x acceleration). Mass will remain constant and that means that whether the object is on Earth or on Mars, its mass remains the same. Thus, the object will still have 2.00 kg as mass on Mars.
Answers: 2.00 kilograms
Newton’s first law is motion. For example, an object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.
I would say Conduction because you are touching the cookie sheet, even though it is hot (so heat) you are physically touching it so it would not be radiation
Answer:
The force of friction that acts on him is
![F_k=567N](https://tex.z-dn.net/?f=F_k%3D567N)
Explanation:
The firefighter with an acceleration of 3m/s^2 take the gravity acceleration as 10m/s^2 isn't necessary to know the coefficient of friction just to know the force of friction:
![F=m*a](https://tex.z-dn.net/?f=F%3Dm%2Aa)
![F=F_w-F_k](https://tex.z-dn.net/?f=F%3DF_w-F_k)
![m*a=F_w-F_k](https://tex.z-dn.net/?f=m%2Aa%3DF_w-F_k)
![F_w=81kg*10m/s^2=810N](https://tex.z-dn.net/?f=F_w%3D81kg%2A10m%2Fs%5E2%3D810N)
Sole to Fk
![81kg*3m/s^2=810N-F_k](https://tex.z-dn.net/?f=81kg%2A3m%2Fs%5E2%3D810N-F_k)
![F_k=810N-243N](https://tex.z-dn.net/?f=F_k%3D810N-243N)
![F_k=567N](https://tex.z-dn.net/?f=F_k%3D567N)