Solve the problem.Newton's Universal Law of Gravitation states that the attractive force exerted on one spherically symmetric object of mass M by a second spherically symmetric object of mass m is given by 
where r is the distance between the centers of the two objects and G is a constant equal to 
when F is in newtons (N), M and m are in kilograms (kg), and r is in meters (m). What is the magnitude of the gravitational force exerted on an object of mass 
-4.0px;" /> by an object of mass 
if the objects are 20 m apart?
A. 40,020.0 N
B. 100.1 N
C. 10.0 N
D. 200.1 N
Answer: C
Mathematics
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Solve the problem.The perimeter of a triangle is 41 cm. The triangle is isosceles now, but if its base were lengthened by 6 cm and each leg were shortened by 7 cm, it would be equilateral. Find the length of the base of the original triangle.
A. 4 cm B. 18 cm C. 5 cm D. 11 cm
Mathematics
Add the following binary numbers and check your result by decimal addition.
A. 1000111 B. 1000011 C. 1000100 D. 1001111 E. 1100100
Mathematics
Find all relative maxima of the given function.
A. 
B. 
C. 
D. 
E. no relative maxima
Mathematics
In a sample of size 
and the proportion that respond favorably is 
, then the standard error is:
A. 0.0012
B. 80
C. 
D. 
Mathematics