A granite block is mostly empty space because the atoms in the granite are
A) in perpetual motion.
B) mostly empty space themselves.
C) held together by electrical forces.
D) not as close together as they could be.
E) invisible.
Question 2
A planet orbiting the Sun has speed v = (GM/d). Escape speed from the Sun is v = v(2GM/d), where G is the gravitational constant, M is Sun's mass, and d is the distance from the Sun.
Noting that this tells us that escape speed is 2 times orbital speed, which planet would fly out of the solar system by a 1.5 increase in orbital speed?
A) Mercury.
B) Venus.
C) Earth.
D) all of the above
E) none of the above
The ethanol molecule showing two carbon atoms, six hydrogen atoms, and one oxygen atom.
Enzyme block in phenylketonuria (PKU).
Separate the metatarsals. Create space between the metatarsals by holding onto the sides of the foot ...
International space station.
International space station