Answer:
d. W<0 and Q<0
Explanation:
Heat (Q) and work (W) are ways of exchange of energy.
When a system gains heat, that its temperature increases, and, because the heat flows to the system it's positive (Q>0), and when it loses heat the inverse happens and Q<0.
When the system expands, it does work at the surroundings, so the work is going from the system, and it's positive (W >0), when the inverse happens, the work goes to the system and W<0.
So, the gas is compressed, then W<0, and it warms up. To cold it, the tank has put a tub with water, do the gas will lose heat and Q<0.
A block has a volume of 0.09 m3 and a density of 4,000 kg/m3. The force of gravity acting on the block in water is 3,528 N. density = mass / volume , mass= 4000*0.09 =360 kg , force = mass *acc , force = 360 *9.8 = 3,528 N
A)3528 N
Coniferous Forest i believe.
Have a good day and hope it helped.
Answer:
a
When
b
When
Explanation:
From the question we are told that
The radius is R
The current is I
The distance from the center
Ampere's law is mathematically represented as
When
=>
But when