Answer:
The energy transferred is 2.93 MJ.
Explanation:
Given that,
Time = 1 h = 3600 s
Area
Width
Temperature
For concrete wall,
The thermal conductivity
k = 1.7 W/mK
Using Fourier's law
Where, A = area
= width
= change in temperature
k = thermal conductivity
Put the value into the formula
The energy transferred in 1 hour
Hence, The energy transferred is 2.93 MJ.
I think the answer would be c, but double check.
Answer:
The moun lives 2.198*10^-6 s as measured by its own frame of reference
The Earth moved 648 m as measured by the moun's frame of reference
Explanation:
From the point of view of the observer on Earth the muon traveled 3.53 km at 0.983c
0.983 * 3*10^8 = 2.949*10^8 m/s
Δt = d/v = 3530 / 2.949*10^8 = 1.197*10^-5 s
The muon lived 1.197*10^-5 s from the point of view of the observer.
The equation for time dilation is:
Then:
From the point of view of the moun Earth moved at 0.983c (2.949*10^8 m/s) during a time of 2.198*10^-6, so it moved
d = v*t = 2.949*10^8 * 2.198*10^-6 = 648 m
Answer:
3.94784176044N/m
Explanation:
The period of a spring is found using the formula T=2π, where m is the mass and k is the spring constant.
The period can also be found using the formula T=, where f is the frequency.
T=T
∴2π=
2π=1/0.1
=10/2π
10/k=1.59154943092²
10/2.53302959106=k
k=3.94784176044N/m
.
The answer is A. Solids have both definite shape and denfinite volume.