Directions: Use the diagram below of spheres at varying distances apart to answer the questions that follow
Which of the diagrams shows the greatest gravitational force?
Ο Α.
OB 11
10 g
10 g
10 g
10 g
О с III
II
OD. IV
29
29
IV
III
T
OP
40

**urgent** roberto plans to use two transformers to reduce a voltage of 120 v to 4 v. he uses a transformer that has 300 coils in the primary winding and 50 coils in the secondary winding. he has four other transformers, as listed in the table. which transformer should roberto use to have an ending voltage of 4 v? a- w b-xc- yd- z

Along wire carrying a 4.2 a current perpendicular to the xy-plane intersects the x-axis at x=−1.7cm. a second, parallel wire carrying a 3.0 a current intersects the x-axis at x=+1.7cm. part a at what point on the x-axis is the magnetic field zero if the two currents are in the same direction? express your answer to two significant figures and include the appropriate units.

The smallest particle of an element that retains its identity in a chemical reaction. true or false