economics
Good Canadians...
economics
What effects will this change have on the exchange rate of the canadian dollar in terms of the us dollar? Good Canadian real estate market sends a signal to American construction companies.
vectors
how do you determine if two vectors are a) Collinear b) orthogonal?
Calculus
Resolve the vector v=[7,9] into rectangular components, one of which is in the direction of u=[6,2].
Vectors
Determine a unit vector that is orthogonal to both u=[3,-4, 1] and v=[2,3,-4].
Vectors
An airplane takes off at a ground velocity of 200 km/h toward the east, climbing at an angle of 14 degrees. A 20-km/h wind is blowing from the north. Determine the resultant air and ground velocities and their magnitudes.
Calculus
Given vectors u= (3, -4, 1) and v= (2, 1, -5) Find: a) u x v b)|u x v|
calc Urgent please
A boat heads 15 degrees west of north with a water speed of 3m/s. Determine its velocity relative to the ground when there is a 2m/s current from 40 degrees east of north. How long does it take to cross the river which is 800 m wide? Where does the boat land on the other side?
Calculus
Prove each property using Cartesian vectors: A) (u +v) + w = u + (v + w)
CALC urgent please
A boat crosses a river and arrives at a point on the opposite bank directly across from its starting position. The boat travels at 4 m/s and the current is 2m/s. If the river is 600 m wide in what direction must the boat steer and how long will it take to cross?
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