Let v and w be two vectors in the plane with given magnitudes. The angle between v and w is ?. Find the expression. Round the answer to the nearest tenth.
= 5, 
= 9, ? = 51°
Find 
A. 10.3
B. -42.6
C. 7.0
D. 12.8
Answer: C
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Provide the proper response.True or false? 
Fill in the blank(s) with the appropriate word(s).
Solve.The physics formula for reduced mass (?) of two interacting bodies is 
where m1 is the mass of the first body and m2 is the mass of the second body. Solve for m1.
A. m1 = 
B. m1 = 
C. m1 = 
D. m1 = 
A nurse earns $22.00 an hour. For working the night shift, the nurse receives a 8% increase in pay.
a. What is the increase in hourly pay for working the night shift? b. What is the nurse's hourly wage for working the night shift?A) A) a) $14.00; b) $33.00 B) a) $1.76; b) $23.76 C) a) $1.76; b) $30.00 D) a) $14.00; b) $23.76 E) a) $14.00; b) $30.00
Solve.A planet's orbit about the Sun can be described as an ellipse. Consider the Sun as the origin of a rectangular coordinate system. Suppose that the x-intercepts of the elliptical path of the planet are 
and that the y-intercepts are 
Write the equation of the elliptical path of the planet.
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1