Use the formula dgh + p atm
d is density g is gravitational field strength h heigh or depth and p atm is atmospheric pressure
1000 x 10 x 20 + 100000 = 300000
almost 300,000 pascal
Answer:
P = 147,75 W
Explanation:
A man whose mass is 59.1kg climbs up 30 steps of a stair each step is 25 cm high
Height at 30 steps , h=30×2.5= 7.5 m
Change in potential energy , =mgh=59.1×10×7.5 = 4432.5 J
So, Work done by the man , W= 4432.5J
Power used , P= ![\frac{W}{T}](https://tex.z-dn.net/?f=%5Cfrac%7BW%7D%7BT%7D)
P = 4432.5 /30
P = 147,75 W
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claim
[klām]
VERB
state or assert that something is the case, typically without providing evidence or proof.
"he claimed that he came from a wealthy, educated family" · [more]
synonyms:
assert · declare · profess · maintain · state · hold · affirm · avow · aver · [more]
NOUN
an assertion of the truth of something, typically one that is disputed or in doubt.
"he was dogged by the claim that he had CIA links" · [more]
synonyms:
assertion · declaration · profession · affirmation · avowal · averment · protestation · representation · contention · submission · case · allegation · pretense · asseveration
a demand or request for something considered one's due.
"the court had denied their claims to asylum"
Answer:
P=740 KPa
Δ=7.4 mm
Explanation:
Given that
Diameter of plunger,d=30 mm
Diameter of sleeve ,D=32 mm
Length .L=50 mm
E= 5 MPa
n=0.45
As we know that
Lateral strain
![\varepsilon _t=\dfrac{D-d}{d}](https://tex.z-dn.net/?f=%5Cvarepsilon%20_t%3D%5Cdfrac%7BD-d%7D%7Bd%7D)
![\varepsilon _t=\dfrac{32-30}{30}](https://tex.z-dn.net/?f=%5Cvarepsilon%20_t%3D%5Cdfrac%7B32-30%7D%7B30%7D)
![\varepsilon _t=0.0667](https://tex.z-dn.net/?f=%5Cvarepsilon%20_t%3D0.0667)
We know that
![n=-\dfrac{\epsilon _t}{\varepsilon _{long}}](https://tex.z-dn.net/?f=n%3D-%5Cdfrac%7B%5Cepsilon%20_t%7D%7B%5Cvarepsilon%20_%7Blong%7D%7D)
![\varepsilon _{long}=-\dfrac{\epsilon _t}{n}](https://tex.z-dn.net/?f=%5Cvarepsilon%20_%7Blong%7D%3D-%5Cdfrac%7B%5Cepsilon%20_t%7D%7Bn%7D)
![\varepsilon _{long}=-\dfrac{0.0667}{0.45}](https://tex.z-dn.net/?f=%5Cvarepsilon%20_%7Blong%7D%3D-%5Cdfrac%7B0.0667%7D%7B0.45%7D)
![\varepsilon _{long}=-0.148](https://tex.z-dn.net/?f=%5Cvarepsilon%20_%7Blong%7D%3D-0.148)
So the axial pressure
![P=E\times \varepsilon _{long}](https://tex.z-dn.net/?f=P%3DE%5Ctimes%20%5Cvarepsilon%20_%7Blong%7D)
![P=5\times 0.148](https://tex.z-dn.net/?f=P%3D5%5Ctimes%200.148)
P=740 KPa
The movement in the sleeve
![\Delta =\varepsilon _{long}\times L](https://tex.z-dn.net/?f=%5CDelta%20%3D%5Cvarepsilon%20_%7Blong%7D%5Ctimes%20L)
![\Delta =0.148\times 50](https://tex.z-dn.net/?f=%5CDelta%20%3D0.148%5Ctimes%2050)
Δ=7.4 mm