Who built and flew the first airplane?

Alexander Graham Bell

Henry Ford

the Wright brothers

Thomas Edison

If a 40-kg object is moving with a velocity of 65 m/s to the right, for how many minutes must a force of 4n be applied in the opposite direction to result in a final velocity of the object of 10 m/s in the opposite direction?

What variables affect the acceleration of an object and in what matter do they affect the acceleration?

In terms of absorption and reflection, describe why anobject painted red appears red in white light.

According to the law of conservation of momentum, the total initial momentum equals the total final momentum in a (n): A. interacting system. B. isolated system. C. collision between only two objects. D. collision between any two objects.

How are magnetic field lines and electric field lines alike

How does the overtone number relate to the standing wave pattern number

Which of the following statements about Em waves is true? A. Em waves all have the same speed B. Em waves all have the same wavelength C. Em waves only travel through water D. Em waves all have the same amount of energy

A teacher has asked four students to state a scientific theory. Which student is correct?

What are the two main currents that affect the US on the east and west coast?

What role do volcanoes play in the flow of energy and cycling of matter on earth?