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Why is it that it is more dangerous to jump from a certain altitude onto a concrete pavement than onto a loose sandy loom soil?
Jumping onto concrete pavement from a certain altitude results in a higher impact force due to the hard and rigid surface. This can lead to greater risk of injury or even death compared to landing on loose sandy loom soil, which absorbs more of the impact force and reduces the risk of serious injury.
What else can I help you with?
Does concrete weigh more than steel?
No, steel is denser than concrete, so it is heavier by volume. However, concrete can still be heavier in certain applications due to its bulkiness and ability to be molded into large shapes.
What is the meaning of altitude hole?
An altitude hole refers to a gap in altitude coverage in a radar or sensor system. It occurs when a sensor is unable to detect objects within a specific altitude range, leaving a hole in its coverage area. This can potentially lead to blind spots in monitoring aircraft or other objects at certain altitudes.
What are the potential consequences of a sudden decrease in air pressure?
A sudden decrease in air pressure can lead to symptoms such as dizziness, shortness of breath, and in severe cases, hypoxia or altitude sickness. This can be dangerous for individuals who are not acclimated to high altitudes or for those with certain medical conditions. It can also affect the performance of machinery and equipment that rely on air pressure for operation.
What stops radio waves from traveling through certain materials?
Certain materials, such as metals and thick concrete, can block radio waves from traveling through them because these materials absorb or reflect the waves, preventing them from passing through.
What Materials that can absorb radiation?
Materials that can absorb radiation include lead, concrete, and water. Lead is commonly used in shielding for its dense properties, concrete provides effective radiation protection due to its thickness and density, and water can act as a shield against certain types of radiation.
Why do cracks develop in concrete?
Concrete is strong when compressed but relatively weak and brittle when stretched.If the soil under the pavement is eroded, or expands during freezing, or is lifted enough by tree roots, the pavement will bend and crack on the convex side.When concrete is poured, it warms as it hardens and then contracts slightly as it cools back down. If the poured block is long enough, then it will have enough contact with the Earth so the ends resist such movement, and the block will pull itself apart.Highway pavement has steel mesh or even rebar (reinforcement bars) to resist the tensile (stretching) forces. It can only help to a certain extent. If such a pavement block is long enough, then normal environmental forces will exceed the reinforcement; heating and cooling the pavement, for example.In addition, highway pavement is subject to high pressure from freight trucks and shock waves from high speed traffic. It is also poured in very long continuous sections. If there are not enough (closely spaced) contraction joints to attract inevitable cracking, then they will occur between contraction joints at random.Answer:Due to temperature stresses during hydration process, longitudinal and transverse cracks develop on concrete pavements.- K @ $ !civil engineering - GITAM UNIVERSITY
Why do cracks develop in concrete pavements?
Concrete is strong when compressed but relatively weak and brittle when stretched.If the soil under the pavement is eroded, or expands during freezing, or is lifted enough by tree roots, the pavement will bend and crack on the convex side.When concrete is poured, it warms as it hardens and then contracts slightly as it cools back down. If the poured block is long enough, then it will have enough contact with the Earth so the ends resist such movement, and the block will pull itself apart.Highway pavement has steel mesh or even rebar (reinforcement bars) to resist the tensile (stretching) forces. It can only help to a certain extent. If such a pavement block is long enough, then normal environmental forces will exceed the reinforcement; heating and cooling the pavement, for example.In addition, highway pavement is subject to high pressure from freight trucks and shock waves from high speed traffic. It is also poured in very long continuous sections. If there are not enough (closely spaced) contraction joints to attract inevitable cracking, then they will occur between contraction joints at random.Answer:Due to temperature stresses during hydration process, longitudinal and transverse cracks develop on concrete pavements.- K @ $ !civil engineering - GITAM UNIVERSITY
What is distress in concrete?
The cracks in concrete and its inability to support certain structures is what is called distress in concrete.
What are concrete skills?
Concrete skills are a skill you preform on a certain task.
What is concrete testing equipment actually testing?
Concrete testing equipment is testing for consistency within a given batch of concrete. Concrete needs to be a certain consistency in order to flow out of the trucks and into the space correctly. It also needs to have a certain consistency in order to set properly.
Who assigns the aircraft a certain altitude and a specific route to follow?
Route guidance and altitude clearances are issued by en-route air traffic controllers.
What is the cruising altitude of a commercial plane?
There is no certain cruising altitude for a commercial airline. it depends on where they are flying and how long they fly. most airlines fly above 10,000 ft. the max altitude is around 41,000 ft.
Height of an object above sea level?
elevation
Is Baltimore dangerous?
It depends, some certain parts in Baltimore are safe, but others at night can be dangerous
Why does concrete have to be placed compacted and finished within a certain time from when the concrete was mixed?
Concrete cures and hardens from chemical reactions over a specific period of time. If the concrete work is not completed within the specific period of time, the fluid concrete will harden and become unworkable.
What are concrete molds usually used for?
Concrete molds are used to make the concrete to certain pre-defined shapes after the liquefied concrete dries. The moulds are pre-made containers made of wood, stone or plastic with different shapes.
What materials affect wi fi performance?
Metals and certain kinds of concrete.
