Answer:
the pressure at the bottom is approximately 103264 Pa
Explanation:
From Pascal's law, the pressure at the bottom of the container is the pressure from the atmosphere and the columns of water and olive , therefore
Pressure at the bottom = Pressure at the surface of the liquid ( atmospheric pressure) + pressure of the column of water + pressure of the column of olive oil
since
- Pressure at the surface of the liquid = atmospheric pressure = 101325 Pa
- pressure of the column of water = density of water * gravity * level of water
= 1000 kg/m³ * 9.8 m/s² * 0.12 m = 1176 Pa
- pressure of the column of olive oil= density of olive oil* gravity * level of olive oil = 916 kg/m³ * 9.8 m/s² * 0.085 m = 763 Pa
therefore
Pressure at the bottom = 101325 Pa + 1176 Pa + 763 Pa = 103264 Pa
density of olive oil was taken from internet sources ( we can check that is lower than the one of water, and thus it floats )
Answer: The 5 uses of mechanical energy are: 1) Hammering a nail
2) Using Dart gun 3) Moon 4) Hydropower plant 5) Sharping a pencil.
The space between the cars closes at (70+65)=135 km/hr. They collide in (405/135)=3 hours after they start moving. In 3 hours, the canary covers (100km/hr x 3)= 300 km.
Answer:
B electron
Explanation:
electron will have greater velocity
Answer:
Explanation:
The acceleration of an object is equal to the change in velocity of the object divided by the time taken for the object to change the velocity:
where:
u is the initial velocity
v is the final velocity
t is the time taken for the velocity to change from u to v
For Ms Jackson in this problem, we have:
u = 6 m/s (initial velocity)
v = 0 m/s (final velocity)
t = 4 s (time elapsed)
Substituting into the equation, we find the acceleration:
And the negative sign indicates that the direction of the acceleration is opposite to the direction of motion.
