Solve the problem.Imagine a force field in which the force is always perpendicular to dr. What is special about the work done in moving a particle in such a field?
What will be an ideal response?
Work is identically zero.
Mathematics
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Find the perimeter of the figure.
A. 62
feet
B. 27
feet
C. 27
feet
D. 27
feet
Mathematics
If A denotes the area of the sector of a circle of radius r formed by the central angle ?, find the missing quantity. If necessary, round the answer to two decimal places.r = 18 feet, A = 84 square feet, ? = ?
A. 1,560,152.87° B. 29.72° C. 780,076.43° D. 14.86°
Mathematics
Evaluate the definite integral.
dx
A. -20e2 B. 0 C. -20 D. 20
Mathematics
Convert the angle from degrees to radians. Express the answer as a multiple of ?.1080°
A. 
B. 
C. 12?
D. 6?
Mathematics