How was Stalin important to the cold war?

3 NO₂(g)   +   H₂O(l)   →   2 HNO₃(l)   +   NO(g)   Δ_rH = -72.0 kJ,

calculate the molar enthalpy of reaction, _rH for:

      4)  NO(g)

Calculate the displacement (magnitude and direction) of the ball when it is moved from the initial to the final position.initial position (x, y)i = (–10.0, 10.0) mfinal position (x, y)f = (15.0, –10.0) m?

point (-9,40) is on the terminal arm of an angle in standard position, length of line segment

Forces and feilds

The abiotic factors that might cause annual fluctuations in the rate of photosynthesis in a grassland ecosystem are

Due to conservation of energy, a grandfather clock is able to keep time since the cycle of the pendulum inside remains constant. if the maximum height of a pendulum in a clock is 15.0cm higher than at the equilibrium position, what is the maximum speed of the pendulum?

 transformer is found with 16 turns of wire on its primary coil and 96 turns of wire on its secondary coil. This is a ­­__i__ transformer. It will multiply the primary current by __ii__ assuming that it is an ideal transformer.

what happens to the number on the force scale as you start to pull on the toboggan but it remains stationary

1. Can a system of quadratic-quadratic equations can have exactly one solution?

2. Can a system of quadratic-quadratic equations has no solutions if the graphs do not intersect?

3. Is it impossible for a system of linear-quadratic equations to have an infinite number of solutions?

4. Can the solution to a system of equations can be verified by substituting the solution into one of the original equations?