The smallest unit of an element that has all of the properties of the element is a/an

A. neutron.

B. atom.

C. cell.

D. molecule.

Three-fourths of the area of a rectangular lawn 30 feet wide by 40 feet long is to be enclosed by a rectangular fence. If the enclosure has full width and reduced length rather than full length and reduced width, how much less fence will be needed

How do scientists who speak different languages make their data understandable to one another? A. The all use different systems of measurement. B. They all use SI. C. The communicate through a universal translator. D. They all must speak French.

What is the big idea of mechanical equilibrium

Light from a laser of wavelength λ1 shines normally on a pair of narrow slits separated by distance D. This results in a difference in angle between the central and first intensity maxima of 0.02 radians.

Kelly is measuring an object with a metric ruler. To minimize parallax, she should

When You lift a load, the resistance force is? A. magnetism b. gravity

What changes a ball velocity

A rock with mass m = 3.60 kg falls from rest in a viscous medium. The rock is acted on by a net constant downward force of F = 15.

Two electrons are 2.3nm apart. What is the force between two electrons?

3. In a demonstration learning activity, A. the teacher shows children how something works or how to complete an entire activity. B. each child shows and tells about a favorite toy. C.