A plane traveling 4.9 m/s east encounters wind traveling 3.9 m/s north. Determine the relative velocity of the plane.

Spend time observing or thinking about events that involve matter and energy. which events can you explain? which events can’t you explain?

You are given two vectors a⃗ =−3.00ι^ 5.00j^ and b⃗ =5.00ι^ 2.00j^. let the counterclockwise angles be positive.

Estimate the change in the gibbs energy and molar gibbs energy of 1.0dm3 of octane when the pressure acting on it is increased from 1.0 atm to 100 atm. the mass density of octane is 0.703 g cm−3