Why is scientific notation used?

Radon, the radioactive gas that contributes more than half the yearly dose to the average American, has a half-life of approximately 4 days. How many days does it take a radon source to decay to 1/128 of its original level of radioactivity?

Describe the difference between contact forces and field forces.

A 60-w light bulb and a 100-w light bulb are both connected in parallel to a 120-v outlet. which light bulb has more current in it

Which of the following is NOT an example of an insulator? Question 25 options: wood plastic glass aluminum foil

Current 1 of 8.4 a runs for 240 seconds and then stops. current 2 is 10.5 a. how long does current 2 have to run to deliver the same amount of charge as current 1? 88.2 s 192 s 2016 s 21,000 s

When you look into a clear pond, a fish may appear to be in a different position than it actually is. What is this caused by? A. diffraction B. dispersion C. refraction D. reflection,

How long would it take to drive to alpha centauri (4.4 light-years away) ?

A type of fault where the hanging wall slides upward

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