Which element has 19 electrons surrounding the nuclei of its atoms?

A 6kg object is lifted to a height of 10m. How much PE does it have?

True or false. On a distance-versus-time graph, a speed of zero would appear as a horizontal line.

Which of these events indicate that a chemical reaction might have occurred?

To determine a waves' frequency, you must know the A. distance it travels. B. number of oscillations in a given period of time. C. distance between the crest and trough. D. height of the wave.

Suppose that a nascar race car is moving to the right with a constant velocity of + 82m/s. what is the average acceleration of the car?

How was dyslexia treated in the past and how is dyslexia treated today?

The work of Charles Kuen Kao is likely to have been most influenced by the work of which of the following scientists? A. Galileo Galilei B. Christian Doppler C. Sir Isaac Newton D. Ibn al-Haytham

Suppose a car is moving in a straight line and steadily increases its speed. It moves from 35 km/h to 40 km/h the first second and from 40 km/h to 45 km/h the next second. What is the car acceleration?

Why can crevasses in glaciers only be 50 meters deep? A. Plastic flow occurs below that depth. B. Glaciers cannot be thicker that 50 Meters. C. Surges prevent plastic flow below that depth. D. Basal slip occurs below that depth.

What are the changes to Earth's surface that occur as a result of plate movement