Solve the problem.Two forces F1 = 628 lb and F2 = 256 lb act at a point with a resultant force is R = 708 lb. Find the angle between the forces.
A. 97.4°
B. 124.0°
C. 164.0°
D. 82.6°
Answer: D
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Solve the problem.In thermodynamics, the differential form of the internal energy of a system is dU = T dS - P dV, where U is the internal energy, T is the temperature, S is the entropy, P is the pressure, and V is the volume of the system. The First Law of Thermodynamics asserts that dU is an exact differential. Using this information, justify the thermodynamic relation 
= - 
.
What will be an ideal response?
Find the particular solution to the given differential equation that satisfies the given conditions.D2y - 12 Dy + 35y = 0; Dy = 0 and y = 2 when x = 0
A. y = 7e5x - 5e7x B. y = - 7e5x - 5e7x C. y = 7e5x + 5e7x D. y = - 7e5x + 5e7x
Find a general term an for the geometric sequence.8, - 2, 
, - 
, 
. . .
A. an = 6 
n-1
B. an = 8 
n-1
C. an = 
n-1
D. an = 8 
n-1
Find the point on the graph of 
that is closest to the point 
. Round all numerical values of the solution to three decimal places.
?
A. 
B. 
C. 
D. 
E. 