Which of the following is best determined by applying the principles of relativity and uncertainty, rather than Newtonian physics? A.
The position of a bird flying overhead
done

B.
The position of an electron

C.
The speed of a truck

D.
The length of an object at rest

The first law of thermodynamics states that heat added to a system is neither created nor destroyed but is transformed ⇒ as it changes into other forms of energy.

How have the competing explanations' experiments on atoms affected the development of the atomic model?

Awater balloon launcher uses an elastic band with a spring constant of 115 n/m to use thee launcher you stretch thee band back with a balloon n it the water balloons have a mass of 1.3 kg a) if you stretch the band by 0.8 m, what elastic force will the band exert? b) with the band stretched 0.8 m, how much elastic potential energy is stored in the spring? c) if you release the band, it pushes forward. what is the kinetic energy of the balloon when it reaches the natural length of the band? d) what is the speed of the balloon when it reaches the natural length of the band?