The object will sink in any liquid whose density is less than 0.75 g/mL .
A few examples are butane, ether, gasoline, hexane, octane, naphtha, pentane, and propane.
Q is a concave mirror.
Explanation:
The image formed by a concave mirror is observed to be virtual, erect and larger than the object.
Answer:1.33 hr
Explanation:
Given
Speed of airplane relative to air=627 km/h
Distance traveled =787 km
Speed of wind=38.4 km/h
Wind is blowing in opposite direction therefore net speed is
thus time taken is
Answer: 3.48g
Explanation:
here, we will be using conservation of momentum to solve the problem. i.e the total momentum remains unchanged, unless an external force acts on the system. We'll in thus question, there is no external force acting in the system.
Remember, momentum = mass * velocity, then
mass of blood * velocity of blood = combined mass of subject and pallet * velocity of subject and pallet
Velocity of blood = 56.5cm = 0.565m
mass of blood * 0.565 = 54kg * (0.000063/0.160)
mass of blood * 0.565 = 54 * 0.00039375
mass of blood * 0.565 = 0.001969
mass of blood = 0.00348kg
Thus, the mass of blood that leaves the heart is 3.48g
The grand canal was built to make easier the transportation of grains to the power center of north china.
<h3>How was the Grand Canal built?</h3>
The canal was built in order to connect the Yellow River in the north with the Yangtze River in the south. This canal is built for making easier the transportion of grain from the south to the centers of north China. The total length of the Grand Canal is 1,776 km.
So we can conclude that the grand canal was built to make easier the transportation of grains to the power center of north china.
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