Which characteristic does Earth share with the other planets in our Solar System?
Select one:
A. They all have oceans.
B. They all orbit the Sun.
C. They all have rocky surfaces.
D. They all have one moon.

Determine the fraction of the magnitude of kinetic energy lost by a neutron (m1 = 1.01 u) when it collides head-on and elastically with a target particle at rest which is 21h (heavy hydrogen, m = 2.01 u).

Need asap ‼️ 20 pts which gravitational force field diagram is drawn correctly? (answers in pictures below)

Asmall object with mass 0.200 kg swings back and forth on the lower end of a light rope that is 3.00 m long. the upper end of the rope is attached to the ceiling. as the object swings through its lowest position, where the rope is vertical, the speed of the object is 5.80 m/s. at this point in the motion, what is the tension in the rope? (use g = 9.80 m/s2.)