The metallic elements which all react in water are found in the:

same group

same period

rare earth elements

If 2 objects have the same momentum which statement is true A. mass and velocity are the same for both B. they both have the same mass C. the product of mass x velocity is the same for both D. they both have the same velocity

An 8-inch dinner knife is sitting on a circular plate so that its ends are on the edge of the plate. if the minor arc that is intercepted by the knife measures 120°, find the diameter of the plate. show all work.

Lucia wants to arrange the four states of matter from lowest kinetic energy to highest kinetic energy. How should she arrange them?

Which best explains why scientific theories grow stronger over time?

What term describes the situation where the frequency of the wind match the frequency of the building? a. velocity b. resonance C. amplification d. force

Scientists hypothesize that oxygen began to accumulate in earth's atmosphere of living things with the ability to?

The 3 stages of the water cycle are

What is the main natural force responsible for mass movement of rocks and debris?

In a mass spectrometer, a specific velocity can be selected from a distribution by injecting charged particles between a set of plates with a constant electric field between them and a magnetic field across them (perpendicular to the direction of

What is the force of attraction between two masses 5kg and 8kg at a distance of 60cm apart. (A) 4.5*10-9N (B) 5.6*10-9N (C) 7.4*10-9N (D) 8.0*10-9N (E) 10.5*10-9N