Planetary orbits are circles
Indicate whether the statement is true or false
F
You might also like to view...
Pressure: A brick weighs 50.0 N, and measures 30.0 cm × 10.0 cm × 4.00 cm. What is the maximum pressure it can exert on a horizontal surface due to its weight?
A. 1.25 Pa B. 12.5 Pa C. 1.25 kPa D. 12.5 kPa
Suppose you put two protons near each other. Because of the electromagnetic force, the two protons will
A) collide. B) remain stationary. C) attract each other. D) repel each other. E) join together to form a nucleus.
Each of two small non-conducting spheres is charged positively, the combined charge being 40 ?C. When the two spheres are 50 cm apart, each sphere is repelled from the other by a force of magnitude 2.0 N. Determine the magnitude of the smaller of the two charges
a. 1.4 ?C b. 1.1 ?C c. 2.0 ?C d. 3.3 ?C e. 17 ?C
Uniform Circular Motion: A point on a wheel of radius 40 cm that is rotating at a constant 5.0 revolutions per second is located 0.20 m from the axis of rotation. What is the acceleration of that point due to the spin of the wheel?
A. 0.050 m/s2 B. 1.4 m/s2 C. 48 m/s2 D. 200 m/s2 E. 0.00 m/s2