<span>Changes that occur during metamorphism ... The metamorphic rock shale normally becomes following low grade metamorphism.</span>
As we've seen, the exhaust speed in part (a) was 2000 m/s, and the exhaust speed in part (b) was 5,000 m/s, which is obviously 2.50 times faster than in part (a). However, there is no relationship between the beginning and end fuel mass. The necessary fuel mass is not just less by a factor of 2.50 since the initial and final fuel masses really have a logarithmic relationship rather than a simple linear one.
<h3 /><h3>What is exhaust speed?</h3>
The exhaust speed is the difference between the rocket speed and the propellant speed. The exhaust speed of the best chemical rockets is close to 3,000 meters per second. Exhaust speeds while using electric propulsion can reach 20,000 meters per second or greater.
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Answer:
, assuming that there's no heat exchange between the washing machine and the environment.
Explanation:
Let denote the mass of water and the specific heat capacity of water. The energy required to raise the temperature of that much water by would be:
.
Washing at would require a temperature change of .
Washing at would require a temperature change of .
In both situations, while .
Calculate the energy required in either situation:
Washing at :
.
Washing at :
.
.
Answer:
Pumping a well lowers the water level around the well to form a cone of depression in the water table. If the cone of depression extends to other nearby wells, the water level in those wells will be lowered. The cone develops in both shallow water-table and deeper confined-aquifer systems.
Explanation:
Answer:
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