Answer:
1- C 2-B 3-B - these are ur best answers
Explanation:
Answer:
Explanation:
The equations of equilibrium for the child are: (x' in the direction parallel to slope, y' in the direction perpendicular to slope)
After some algebraic manipulation, an expression for the coefficient of kinetic friction is obtained:
Energy = 1/2mv^2
Mass = 130kg
Speed = 5m/s
1/2 x 130 x 25
= 1625J
Answer:
D. 5.8 cm, 31 degrees South of the West axis
Explanation:
Here we have two vectors:
direction west
direction south
We note that the two vectors are perpendicular, so we can use the Pythagorean's theorem to find the magnitude of their resultant:
The direction can be found as follows:
And according to how we calculated the ratio inside the formula, this angle is measured as south of west.
What Is A Molecule? B) NaCi