What is the stone number of an onygen atom that has 8 protons in its nucleus?

Which is an example of data? A. Variables B. Theories C. Measurements D. Laws

An elements atomic number is 8 how many protons would an atom of this element have

Which of the following is an example of convection? A. hot air rising and cooler air falling B. a hot object transferring heat to a cooler one C. a hot oven warming the air around it D. the rays of the Sun warming the earth

What is 2,000m to km

Serena is mixing a material into a beaker filled with a liquid. She notices that the material seems to disappear into the liquid. What physical property of the material is Serena most likely observing?

A runner makes one lap around a 200m track of 25s. What were the runners average speed and average velocity?

Which change occurs when an atom undergoes alpha decay?

An athlete swings a ball, connected to the end of a chain, in a horizontal circle. The athlete is able to rotate the ball at the rate of 8.44 rev/s when the length of the chain is 0.600 m. When he increases the length to 0.

A moving small car has a head-on collision with a large stationary truck 7.3 times the mass of the car. Which statement is true about the direction of the car after the collision if the collision is elastic?

In a ballistic pendulum experiment, projectile 1 results in a maximum height h of the pendulum equal to 2.0 cm. A second projectile causes the the pendulum to swing higher, to h2 = 5.5 cm.