Suppose that the electric force between two objects is 2 N and that you then halve the distance between the objects. The new force is
A) 1 N. B) 0.25 N. C) 0.5 N. D) 8 N. E) 4 N.
D
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In an H-R Diagram, stars with the smallest radius are found in the ____ of the diagram
a. center b. upper left corner c. upper right corner d. lower left corner e. lower right corner
Which of the following cannot be described by a field?
A) gravitational forces B) electrical forces C) magnetic forces D) radiation pressure
A bicyclist starts down a hill with an initial speed of 2.0 m/s. She moves down the hill with a constant acceleration, arriving at the bottom of the hill with a speed of 8.0 m/s. If the hill is 12 m long, how long did it take the bicyclist to travel down the hill?
What will be an ideal response?
If a force always acts perpendicular to an object's direction of motion, that force cannot change the object's kinetic energy
A) True B) False