Answer:
150g
Explanation:
Assuming they are ideal gases at the same temperature and pressure, equal moles of gasses have equal volume. IN this case, if we have 10g of hydrogen gas, that is 5 moles of H2 gas. That means 5 moles og NO2 will occupy the same volume which is 5*(14.0 + 16.0*2) = 230 g
Answer:atomic number 10 noble gas
Explanation:
<span>25 cm x 12 cm x 13 cm = 3900 cm^3
Water has a density of 1 mL/cm^3, so the brick would displace 3900 mL of water.
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Answer: Friction (Fk) = 46.2N.
Explanation: In the attachment, there is the drawing of the forces acting on the skiing person. As the person is in movement, the formula to calculate the friction is Fk = μk.N, where μk is the coefficient of kinetic friction and N is normal force. Normal force is the force necessary to keep a person "above" the ground. To find the normal force as suggested, we use the representation of the forces in the attachment. With it, it's shown that to calculate N:
cos 15° =
N = Fg·cos 15°
N = 608·(-0.76)
N = - 461.9N
Now, with N and knowing the coefficient, which can be found in Physics Text Books and it is 0.1, we have:
Fk = 0.1·(-461.9)
Fk = - 46.2N
The friction is negative because it is pointing to the opposite side of the reference.