How can you calculate the number of electrons in an atom

Find how long it takes a person to drive 201 miles on a highway if she merges onto a highway at 3pm and drives nonstop with her cruise control set on 60 mph.

Two bar magnets are labeled A and B. The ends of each magnet are numbered 1 or 2, but the poles are not labeled. When A1 is brought near B1, the bars repel.

You drop an egg off a bridge. What forces act on the egg as it falls? ! Brainliest to correct answer (s) !

A pendulum takes 10 seconds to swing through 2 complete cycles. a. How long does it take to complete one cycle? b. What is its period? c. What is its frequency?

What is meant by power rating of an appliance? A bulb is rated as 60 W, 220V. What does itindicate?

How would life on earth be different if earth's axis were not tilted with respect to its orbit? A. There would be no seasons. B. There would be no day and night. C. All places would have the same climate. D. The seasons would be much shorter.

What will a spring scale read for the weight of a 75.0-kg woman in an elevator that moves upward with constant speed of 5.8 m/s?

What's the definition of: • cellular respiration • photosynthesis

What are the steps that are important to take for your safety during an earthquake? a. stay away from walls and windows c. stay away from electrical and gas lines b. get under a desk or table d. all of the above

You have an open air column of length 1.40 m in air at 24.2 °C. What is the frequency of the third harmonic?