Answer:
Explanation:
To get the person Moving you have to overcome the static (means not moving) friction coefficient. U(static)
To get the person going at the same speed you have to overcome the kinetic friction coefficient. U(Kinetic)
Force to get him moving is 198 N. Force = ma = U(static)Mg
combining the 2 equations you get 198N = U(static)* 55kg *9.8m/s^2 Solve for U(static)
Same equation to keep him moving except with the dynamic force and the dynamic U
175N= U(kinetic)*55kg*9.8m/s^2 Solve (U dynamic)
To find the internal energy of gas we can use
here given that
Number of moles (n) = 7 moles
Temperature T = 40 + 273 = 313 K
degree of freedom(f) = 5 (for diatomic gas)
now by above formula
<em>So it is approximately 45500 J (option C)</em>
Gram formula mass means the <span> mass of one moles of the compound
so </span> The mass of 1.0 moles of this compound is <span>48g</span>
<span>so i conclude option 3 is correct
hope it helps</span>
Answer:
The missing force is 110 newtons
Explanation:
A net force of 25 newtons means the larger amount of force (135 newtons) has 25 fewer newtons. To get the missing force you subtract 135 from 25, giving you 110 newtons.
