You sit down to eat in an authentic black forest cafe. you request an authentic black forest specialty dessert and coffee. when your food is served, you request sugar and a spoon. call for the check and leave the proper tip.

wow thats great . maybe its the best thing ever .

answer:

because the gravitational attraction of our sun for the earth is the centripetal force causing the earth's circular motion around the sun, we can use netwon's law of universal gravitation to find the mass of the sun without ever actually visiting the sun. this is the same technique you would use to determine the mass of cygnus x-1 with a probe. the earth, orbiting the sun, plays the same role as the probe sent to orbit cygnus x-1.

f(force of gravity) = f(centripetal force)

explanation:

answer: 8

explanation:

2 x 2 = 4.

4 x 2 = 8