Answer:
Explanation:
Intake heat, QH = 100 J
output heat, Qc = 20 J
Work, W = 80 J
TH = 100°C = 373 K
Tc = 10°C = 283 K
TH/ Tc = 373 / 283 = 1.318
QH/Qc = 100 / 20 = 5
for a heat engine, those ratios should be same. so temperature is not correct.
Answer:
the distance of the top of the window below the windowsill from which the flowerpot fell is 0.31 m
Explanation:
given information:
time, t = 0.420 s
height, h = 1.9 m
the the vertical motion equation:
h =
t + 
where
h = height (m)
= initial velocity (m/s)
t = time (s)
g = gravitational force (9.8
)
first we calculate the velocity of the flowers pot when it reaches top window
h =
t + 
1.9 =
(0.42) + (
)
= (1.9 - (
))/0.42
= 2.47 m/s
now we can find the distance of the windowsil
+ 2gh
v = 0, thus
2gh = - 
h = -
/2g
=
/ (2 x 9.8)
= 0.31 m
Answer:
on edge the answer is B Spectrometer
Explanation: