Answer:
79.74*10^6 Pa
Explanation:
Based on the parameters provided, we have:
ε = ln()
Where initial gauge length = 3 cm and the final gauge length is 3.5 cm. Therefore:
ε = ln(3.5/3) = ln(1.167) = 0.154
Similarly,
σ = F/[3.142*(di^2)/4]
Where σ = 120*10^6 Pa and di = 1 cm = 0.01 m
Therefore,
F = 120*10^6 * 3.142*(0.01^2)/4 = 9426 N
σ = F/[3.142*(df^2)/4 = 9426/[3.142*(0.00926^2)/4 = 9426/6.74*10^-5 = 139.95*10^6 Pa
σ = k*ε = 139.95*10^6
k = 139.95*10^6/(0.154)^0.5 = 356.63*10^6 Pa
Therefore, when ε = 0.05 cm/cm
σ = 356.63*10^6 (0.05)^0.5 = 79.74*10^6 Pa
Answer:
Sitting at the bottom of the slide will have the most kinetic energy because all the potential energy is transferred to kinetic after he slides
Explanation:
Answer:
(m1+m2)v
Explanation:
where m1 is the mass of the first body
m2 is the mass of the second body
v is the velocity
The answer is A.
215K is equivalent to -58.15 °C and temperature corresponds with the average kinetic energy.
So the 15°C has a higher energy level than 215K.
Answer:
Electrical Energy
Explanation:
There are a variety of chemical and mechanical devices that are called batteries, although they operate on different physical principles. A battery for the purposes of this explanation will be a device that can store energy in a chemical form and convert that stored chemical energy into electrical energy when needed.