How do boron-10 and boron-11 differ?

The student uses a spring as a spring balance. when the student hangs a stone from this spring its extension is 72mm the spring does not go past the limit of proportionality calculate the force exerted by the stone on the spring the spring constant =

The diagram below represents a flashlight that has been turned on. Which form of energy is being converted to electrical energy by the batteries in the flashlight?

Is it possible for a population with a high birth rate to decrease in size.

If the moon phase is seen as a waxing crescent moon in london, what phase of the moon would be seen in new york if it's viewed at the same time?

A kite suspended in the sky is flowing back and forth. Which type of friction is being described?

How does an atom of chlorine-37 become a chloride ion with a - 1 charge? 17 35.45 O A. The atom gains 1 electron, to make a total of 21. O B. The atom gains 1 electron, to make a total of 18. O C. The atom loses 1 proton, to make a total of 36. O D.

What is the momentum of a 500-kg car moving at 10 m/s?

Which statement describes the formation of a nebula? A. An elliptical flattened disk begins. B. A bulging core with irregular stars around it forms. C. A large flattened core at the center contracts. D. Gases from a dead star gather and contract.

What are 4 things that can happen to a light wave when it hits an object?

Which of the following is NOT a strategy to prevent falls? a. keeping walking surfaces free from moisture and clutter b. replacing damaged electrical cords c. installing handrails for stairs d. keeping a ladder handy for reaching high places