Which particle of the atom has a negative charge?

a. proton

b. neutron

c. nucleus

d. electron

Which of these is the easiest mineral identification property to use when you want to know whether you have pyrite or actual gold? a. heft b. luster c. streak d. magnetism

An explanation of the Big Bang Theory

Air above land may be heated or cooled by what type (S) of heat transfer? A. Conduction only B. Radiation only C. Conduction and Radiation D. Conduction, Radiation, and convection

The smallest hydrocarbon that has isomers is

As altitude increases, the required orbital speed of a satellite: decreases increases remains the same

After creating a question and forming a hypothesis, what is the next step in the scientific method

Roger sees water balloons fall past his window. He notices that each balloon strikes the sidewalk 0.51 s after passing his window. Roger's room is on the second floor, 10 m above the sidewalk.

Which statements accurately describe the Doppler effect?

Describe how mass and distance affect gravitational force.

a bike can climb the inclined road at uniform speed of 72 km/hr by applying force 500N what will be the power applied by the bike?