Answer:
The right leg (oil on top) is higher
Explanation:
Given:
The mass density of oil is lesser than the mass density of water.
- When we pour water in a u-tube that is open at both the ends then the water on both the sides of the tube will rise up to the same height because the algebraic sum of the pressure exerted by the water column and the pressure of atmosphere on both the openings is equal.
- When we pour oil in the right side of the u-tube we observe that the column of liquid on the right side rises more than the column of the liquid on the left side. However we observe that there is rise on both sides of the u-tube.
<u>This is justified by the equation:</u>
where:
density of the liquid
acceleration due to gravity
height of the liquid column
The acceleration is the change of speed/velocity over time. Thus to calculate this you do (V1-V2)/T or (11.2-9.6)/4 or 0.4 m/s^2
Answer:
Explanation:
r = 60 mph
d = 100 miles
t = ?
t = d/r
t = 100 /60
t = 1 2/3 hour or 1 hour and 40 minutes.
Answer:
Lighthouse 1 during the day will be warmer, lighthouse 2 during the night will be warmer.
Explanation:
As the paragraph stated land absorbs heat and heats up faster than water. So during the day the lighthouse farthest away from the water will be hotter. But then the converse is true also land losses heat faster than water at night. So the water retains the heat from the day better making the lighthouse by the water warmer at night.
Answer:
a. 
b. 
Explanation:
Using the triangle theorem both triangle the woman makes between the light so the rate of change of length can use geometry first
Solve to find the rate relation
Now the rate of the change rate
Finally the rate of her shadow moving
