When the child is moving, he/she has kinetic energy. For just a brief second before they move the other way, the child is not moving, but they have gravitational potential energy.
The child may need a push from time to time because friction with the air causes loss of energy.
I believe the correct answer from the choices listed above is option C. The instrument that is <span>best suited for measuring the dimensions of a shoebox would be a ruler. A triple-beam balance is for measuring mass. A volumetric flask is for volume. A caliper is measuring lengths of small objects.</span>
Answer:
energy which a body possesses by virtue of being in motion.
Explanation:
Answer: Macroscoptic Output
Explanation:
Answers to the rest:
1. B) macroscopic outputs.
2.A) a microscopic change creating a macroscopic output
3.B) Because the energy levels of the electrons in different metals are usually not the same, different metals usually emit different colors of visible light.
4.A) Heat is applied to a solid, causing its molecules to move quickly.
5.A) strontium, sodium, copper, potassium
Answer:
The pressure difference between two pipe is 
Pa
Explanation:
Density 
Speed in one pipe 
Speed in second pipe 
According to the bernoulli equation,
The pressure difference is given by,
![P_{2} - P_{1} = \frac{1}{2} \times 1165 \times[ (4.53)^{2}- (1.77)^{2}]](https://tex.z-dn.net/?f=P_%7B2%7D%20-%20P_%7B1%7D%20%3D%20%5Cfrac%7B1%7D%7B2%7D%20%5Ctimes%201165%20%5Ctimes%5B%20%284.53%29%5E%7B2%7D-%20%281.77%29%5E%7B2%7D%5D)
Pa
Therefore, the pressure difference between two pipe is Pa
