How are theories supported in the scientific community?

They are treated as hypotheses.

They are tested by many scientists.

They are unproven but accepted as fact.

They are rarely altered after publication.

As an object falls freely near the surface of the earth, its velocity?

two current carrying wires are placed next to each other. Their currents are moving in the same direction. Suggest why each wire experiences a force

What is the part that includes land and water

Which is a valid velocity reading for an object? A) 45 m/s B) 45 m/s north C) 0 m/s south D) 0 m/s

What is the name of the element with 83 protons and 80 electrons?

In an energy pyramid, the total energy available for consumption from one trophic level to the next one it is A. reduced B. Conserved C. multiplied D. Evenly distributed

Astronauts in orbit are not truly weightless.

Which of the following statements is true regarding the nature of light? Straight line motion is a particle property of light. Straight line motion is a wave property of light. Straight line motion is not a property of light.

A particle that is composed of two up quarks and one down quark is a (1) meson (3) proton (2) neutron (4) positron

Car headlights have both low beams and high beams. The high beams may be necessary when it is very dark outside. If the power for the high beam is 60.0 watts and the current is 5.0 amps, how much voltage is required?