Answer:
779.87 N/m²
Explanation:
Pressure = Force (F) / Area (A)
Recall :
Force = ma ; mass * acceleration due to gravity
a = 9.8 m/s² ; mass = 0.4kg
Force, F = 0.4 * 9.8 = 3.92 N
Area = πr² ; r = Radius = 4cm = 4 / 100 = 0.04 m
Area = π0.04² = 0.0050265 m²
Hence,
Pressure = 3.92 / 0.0050265
Pressure = 779.86670 N/m²
Pressure = 779.87 N/m²
Answer:
The first answer is W and Z, since they appear to be a period apart. Dont know the second question. I did what I could, hope someone can answer the second.
There is large increase in temperature of the coffee due to the large amount of kinetic energy imputed into the system through the shaking motion. Thus due to the heat being released there is a large decrease in the internal energy of the system
Answer:
it was "The light bends because it changes speed." for me i took the test
Explanation:
i show the thing. i hope this helps
Answer:
25.2563 m/s
Explanation
This is the equation needed
So Just plug in!
