A common isotope of iron-56 has an atomic number of 26. The total number of subatomic particles in the nucleus is? A. 26 B. 56 C. 82 D. 30

What is the relationship between sunspots and geomagnetic storms?

Which state has no active volcanoes A. California B. Hawaii C. New Youk D. Washington

What should scientists do after completing a scientific investigation? A write a hypothesis B confirm the results C design the procedure D make observations

If a 75 W lightbulb operates at a voltage of 120 V, what is the current in the bulb?* A. 1.6A B. 9000 A C. 195 A D. 0.63 A

Smialarities between kinetic friction and static friction?

A straight road to the top of a hill is 2500 feet long and make of 12°with the horizontal. find the high of the hill

Which electromagnetic wave has the shortest wavelength? (A. Radio waves b. X-rays c. infrared rays or d. Visible light)

If blue light hits a red filter, what kind of light comes through the filter? a. red b. blue c. purple d. no light

The tip of a triangle is held 12.0 cm above the surface of a flat pool of water. A submerged swimmer in the pool sees the tip of the triangle at what distance above the water? Let the indices of refraction nwater = 1.33 and nair = 1.00.

Which one of the graphs below also corresponds to a historical form of record keeping? bar graph pictograph line graph pie chart