Two negative charges that are both - 0.3C push each other apart with a force of 19.2 N. How far apart are the two charges?

Which of the following describes continental crust? Select all that apply A. Granite B. Plastic like C. Relatively thick D. Relatively low density

A regulatory sign may be used to a. give limitations for using a particular lane of traffic. b. give directions to the hospital. C. warn of approaching danger.

How Do you know if an object has change position

a10 gram pat of butter raise the water level in a 50 ml graduated cylinder by 11.6 mL. What is the density of the butte?

Todo sistema heterogêneo é bifásico

During a medical condition screening lung capacity testing is a standard procedure. True of false

Which of the following is a unit of energy found in food? a). vitamin b) calorie c) nutrient d) water

As one goes from left to right in a period, which of the following is true? A. The number of protons decreases. B. The number of valence electrons increases. C. both A and B D. none of the above

Which of the following surfaces reflects the most light A yellow cloth B. tree trunk C aluminum foil D. Concrete sidewalk

Which part of an atom has a mass approximately equal to 1/2000 of the mass of a common hydrogen atom? A. nucleus B. electron C. proton D. electron cloud