Answer:
P=160000Pa
Explanation:
You haven't specified what to calculate
But looking at the parameters I think the question is asking to calculate the pressure exerted.
Pressure=Force/Area
P=40000/0.25m²
P=160000Pa
Answer:
8 m/s to the left.
Explanation:
Applying,
V = d/t...................... Equation 1
Where V = Velocity of the car, d = distance, t = time
From the question,
Given: d = 24 meters, t = 3 seconds
Substitute these values into equation 1
V = 24/3
V = 8 m/s to the left.
Hence the velocity of the car is 8 m/s to the left.
239.7
To figure it out, add 273 to the temp in Celsius and you have temp in Kelvin!!
An open system can exchange both matter and energy with the surroundings. Δ H is measured when
an open system is used as a calorimeter.
A closed system has a fixed amount of matter, but it can exchange energy with the surroundings. Δ U is
measured when a closed system is used as a calorimeter because there is no change in volume and thus no
expansion work can be done.
An isolated system has no contact with its surroundings. The universe is considered an isolated system but on
a less profound scale, your thermos for keeping liquids hot approximates an isolated system.
Answer:
force on larger piston = <em> </em>![\frac{fA}{a}](https://tex.z-dn.net/?f=%5Cfrac%7BfA%7D%7Ba%7D)
Explanation:
we label the pistons as piston A and piston B
small piston A:
area = a
force = f
large piston B:
area = A
force = ?
<em>Pascal's law of pressure state that the pressure delivered to a liquid is transmitted undiminished to every portion of the fluid.</em>
we know that pressure = force ÷ area
pressure of piston A = ![\frac{f}{a}](https://tex.z-dn.net/?f=%5Cfrac%7Bf%7D%7Ba%7D)
pressure of piston B = ![\frac{(force on piston B)}{A}](https://tex.z-dn.net/?f=%5Cfrac%7B%28force%20on%20piston%20B%29%7D%7BA%7D)
obeying Pascal's law, the system pressures must be equal. Therefore
![\frac{f}{a} = \frac{(force on piston B)}{A}](https://tex.z-dn.net/?f=%5Cfrac%7Bf%7D%7Ba%7D%20%3D%20%5Cfrac%7B%28force%20on%20piston%20B%29%7D%7BA%7D)
force on large piston (B) = F =<em> </em>![\frac{fA}{a}](https://tex.z-dn.net/?f=%5Cfrac%7BfA%7D%7Ba%7D)