Why are new scientific models developed?

a. to find out whether scientific ideas are correct

b. because original models are never accurate

c. to make the models look better

d. in order to reflect the most recent discoveries

5. All objects, regardless of their mass, free fall with the same A. energy B. acceleration C. speed D. motion

The celestial body of the solar system were said to form what?

Imagine that the jet stream is located further south than usual for the summer. what is the weather like in regions just north of the jet stream, as compared to a normal summer?

What is the wavelength of a wave with a frequency of 200Hz while traveling at 125.5m/s

You are playing a game of soccer. Describe as many actionreaction pairs in this situation as you can think of.

How many constellations are there?

What units are given to the right of the equals sign

Vector has a magnitude of 5.2 units and is directed east. vector has a magnitude of 4.3 units and is directed 35° west of north. by constructing vector diagrams, find the magnitudes and directions of (a) and (b) 4. (a)

Which of the following has the greatest momentum? A - Truck with a mass of 2250 kg moving at a velocity of 25m/s B - car with a mass of 121010 kg moving at a velocity of 51 m/s C - truck with a mass of six 6120 kg moving at a velocity of 10 m/s

How is a magnetic field generated?