The atomic number of magnesium is 12. Its nucleus must contain A) 6 protons and 6 neutrons. B) 6 neutrons and 6 electrons. C) 12 neutrons and no protons. D) 12 protons and no electrons.

What happens if two small positively charged particles of equal magnitude are placed close to each other? A) The particles will experience a repulsive force but remain stationary.

Lowered its infancy motel the weight by introducing increase prenatal and neonatal care for mothers have a social and cultural believes still prevent widespread access to family planning and reproductive control what is most likely going to happen

What is water made up of?

What are two things a scientist can do to cause some substances that are mixed together to react?

How do astronomers learn about the internal structure and evolution of stars? How does a new star form? What causes a supernova to occur? Explain. Is the lifetime of a massive star shorter or longer than a star like the Sun? Why?

If you are asked to determine an objects speed, what information must you have? A: distance and period of time B: distance and direction C: period of time and direction D: distance and change in position

What is the kinetic energy of a 1150 kg sports car traveling down the road with a speed of 29 m/s?

3. A 2,000-kilogram railroad car moving at 5 m/sec to the east collides with a 6,000-kilogram railroad car moving at 3 m/sec to the west. If the cars couple together, what is their velocity after the collision?

A pendulum swings with amplitude. 02 m and period of 2 s what is its maximum speed

What bone cells respond to stress?