What holds the nucleus together?
a. electrical forces between the protons
b. alpha particles
c. beta particles
d. strong forces
d
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Momentum: A rubber ball and a lump of clay have equal mass. They are thrown with equal speed against a wall. The ball bounces back with nearly the same speed with which it hit. The clay sticks to the wall. Which one of these objects experiences the greater momentum change?
A. the ball B. the clay C. Both of them experience the same non-zero momentum change. D. Both of them experience zero momentum change.
Which of these does NOT exist?
A) a million solar mass black hole B) a 6 solar mass black hole C) a 6.8 solar mass neutron star D) a 1.0 solar mass white dwarf E) a 0.06 solar mass brown dwarf
A gravitational wave can carry energy away from two very dense objects if they are orbiting each other or collide.
Answer the following statement true (T) or false (F)
Rather than an explosive death, the Sun will likely end its life forming a(n) ________ surrounding a(n) ________
Fill in the blank(s) with correct word