Alocal farmer notices that the level of water in the pond behind his house has been going down. temperatures have been very high in the area, but there are also a lot of animals on his farm that may be drinking the water. what is causing the water to go down?

There are to variables that seem to drain the water in the pond:

1. High temperatures: Water levels could go down because of evaporation due to high temperatures.

2. Animals drinking water: Water levels could also go down because of the animals drinking water. However, high temperatures also affect this as they drink more water when it is warmer.

In conclusion, high temperatures are causing the water to go down.

nanotechnology is a powerful tool in biomaterials research as it creates numerous possibilities for the engineering of functional molecules. nano-bio refers to projected ability to incorporate biomimicry into various materials at nanoscale.  

first let us lay out the formula for potential

and kinetic energy:

pe = mgh

ke = (mv^2)/2

where: m=mass, v=velocity, g=gravitational

acceleration, h=height

calculating for mass using the known values of

pe:

340j = m (9.81 m/s^2) (50ft) (1m/3.28ft)

m = 2.27 kg

the law of conservation of energy states that

energy is neither created nor destroyed. therefore, the change in kinetic

energy from 50 ft to 35 ft would be equal to the change in potential energy

from 50 ft to 35 ft. however it would be opposite in signs since one is losing

while other is gaining.

ke(35ft) – ke(50ft) = - [ pe(35ft) – pe(50ft]

ke(50ft) = 0 since the brick is initially at rest

ke(35ft) = 340j - 2.27kg (9.81 m/s^2) (35ft)

(1m/3.28 ft)

ke(35ft)

= 102.38 j