Find the direction cosines of a vector
Find the angle between the position vectors to the points (3, -4, 0) and (-2, 1, 0), and find the direction cosines of a vector perpendicular to both.
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A has a mass of 5kg and B has a mass of 7 kg. The coefficient of friction action on A is 0.325. Use conservation of enrgy to calculate the velocity of the masses after B starting from rest has fallen a distance of 1.65 m.
A circular tube of outer diameter 5 cm and inner diameter 4 cm is used to convey hot fluid. The inner surface of the wall of the tube is at a temperature of 800C, while the outer surface of the wall of the tube is at 250C.
What are the vectors joining the atom at .25*A*(i+j+k) to its four nearest neighbors? Determine the angle between the carbon bonds in a diamond.
Estimate the rate (in gal/hr) that your car uses gasoline when it is being driven on an interstate highway. Determine how long it would take to empty a 12-oz soft drink container at this flowrate.
A 300 Ib force acts on the bracket as shown in the figure below. Find the moment it produces about point A using scalar methods. Express your answer in terms of the magnitude and sense of rotation of the moment.
Determine a set of (non-orthogonal) base vectors a = j + k, b = i + k, and c = i + j. (a) Establish their reciprocal vectors and hence express the vectors p = 3i - 2j + k, q = i + 4j, and r = -2i + j + k in terms of the base vectors a, b, and c.
A perfect gas flows through an insulated passage with no shaft work. The entering conditions are T1 = 290 K,P1 = 350 kPa, and V1 = 200 m/s. What is the ratio of the exit diameter to inlet diameter?
Diameter spaced longitudinally every 6 in. knowing that the average allowable shearing stress in the bolts is 10.5 ksi determine the largest allowable vertical shear in the beam.
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Identify and discuss the six party systems in U.S. history. Be sure to note the key issues of each system as well as the dominant and subordinate parties
What are some of the differences between the Democratic and Republican Parties? What policies does each party advocate for?
Since 1854, the United States has mainly operated under a two- Party system dominated by the Democratic and Republican parties.
I believe voting for any 3rd party should not be considered wasting a vote. Voting should be for everyone who can and shouldn't exclude for the two parties.
A public policy decision affects thousands of residents, but only major donors and industry lobbyists are invited to private meetings
Social media can play a significant role in crisis response. It has five major uses during a critical incident: conducting emergency communications
Given this, is voting for a third-party candidate in a presidential election wasting your vote? Why or why not? Should we consider third parties at all?