The wheels on a vehicle have a radius of 23 inches and are turning at 550 revolutions per minute.
What is the angular velocity of the wheels?
A) 4396.9 radian/min C) 4399.7 radian/min
B) 4398.2 radian/min D) 4400.3 radian/min
B) 4398.2 radian/min
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Solve the problem.The surface area of a hollow cylinder (tube) is given by 
where h is the length of the cylinder and R1 and R2 are the outer and inner radii. If h, R1, and R2 are measured to be 9 inches, 3 inches, and 7 inches respectively, and if these measurements are accurate to within 0.1 inches, estimate the maximum possible error in computing S.
A. 12.57 B. 11.94 C. 17.59 D. 13.82
Perform the indicated operations.The impedance in an antenna circuit is 393 ( cos 15.4° + j sin 15.4° ) ohms. Write this in rectangular form.
A. 104.1 + 379.0j B. 379.0 - 104.1j C. 104.1 - 379.0j D. 379.0 + 104.1j
Find the exact value of the expression.cos 
cos 
+ sin 
sin 
A. 1
B. 
C. 
D. 
The circle or ellipse shown in the calculator-generated graph was created using function mode with a square viewing window. What are the two functions y1 and y2 that were used to obtain the graph whose equation is given?(x - 1)2 + (y - 1)2 = 1
A. 
, 
B. 
, 
C. 
, 
D. 
, 