Answer:
i think answer should be C
The mass given is 25.0 grams. As for the change in temperature, I will assume that it start off at room temperature, 25°C.
Answer:
a) Vaw = 2.19 mi / h θ = 346.8º b) Vmgx = 0.866 mi / h Vawy = -0.5 mi / h
Explanation:
We using the sum of vectors, we use the indexes ‘a’ for the plane, ‘g’ for the land ‘w’ for the wind,
=
+
=
+
To facilitate the calculation we decompose with respect to xy coordinate system
=
cos 30
=
sin30
Vwgx = Vwd cos 30
Vwgx = Vwd sin30
Vmgx = 1.00 cos 30
Vmgx = 0.866 mi / h
Vmgy = 1.00 sin30
Vwgy = 0.5 mi / h
Let's find the resulting components
Vawx = 3.00 -0.866
Vawx = 2,134 mi / h
Vawy = 0 - 0.5
Vawy = -0.5 mi / h
Let's use Pythagoras' theorem
Vaw2 = Vawx2 + Vawy2
Vaw = Ra Vawx2 + Vawy2
Vaw = ra 2,134 2 + 0.52
Vaw = 2.19 mi / h
Answer:
valence shell electron pair conversion theory (VSEPR)
Explanation:
The theory of the repulsion of the electronic pairs of the valence layer (VSEPR) Unlike the ionic bond, the covalent bond is directional. The shape of a molecule explains an essential part of its properties. The theory of the repulsion of the electronic pairs of the valence layer (VSEPR) makes a simple addition to Lewis's ideas that allows us to foresee the shape of a given molecule: “The electronic pairs repel each other, so that they place as far as possible from each other. ”