Which nuclei is not radioactive?

A. Am-241

B. Mg-24

C. Pu-241

D. U-238

You run 100 m in 25 s. If you later run the same distance in less time, explain if your average speed increase or decrease.

A scientist will (blank) his experiments to verify the results. A. Publish B. Repeat C. Observe D. Disregard

Retrieving information is the same as intentional learning. True False

what occurs when the soccer ball contacts the hands or arm of any player on the field except the goalkeeper?

There are many risks associated with nuclear power. Which is NOT a risk associated with nuclear power? A) reactor accidents B) renewable energy source C) water contamination near plants D) radiation exposure can cause cancer

Two objects exert a gravitational force of 3 N on one another when they are 10 m apart. What would that force be if the distance between the two objects were reduced to 5 m? A. 1.5 N B. 6 N C. 12 N D. 24 N

5 potential causes of infertility

Which medium could NOT transmit a mechanical wave? A. air B. rope C. vacuum D. metal bar

Most engines will contain how many cylinders in order to maintain a proper balance of weight and forces? A. An even number B. Always six C. An odd number D. Always four

What is the wavelength of an earthquake wave if it has a speed of 8 km/s and a frequency of 2 Hz?