What do energy pyramids show? An energy pyramid shows the distribution of energy among trophic levels. Producers use energy from sunlight to make food. In other words, an energy pyramid shows how much energy is available at each trophic level. Energy is lost at each trophic level of a food chain. How does energy flow […]
Is the law of reflection always true?
Is the law of reflection always true? Law of Reflection One thing is true of both regular and diffuse reflection. The angle at which the reflected rays leave the surface is equal to the angle at which the incident rays strike the surface. According to the law of reflection, the angle of reflection always equals […]
What is the relationship between melting point and boiling point?
What is the relationship between melting point and boiling point? The boiling point is the temperature at which a material changes from a liquid to a gas (boils) while the melting point is the temperature at which a material changes from a solid to a liquid (melts). Keep in mind that a material’s melting point […]
What is the device that melts if it gets too hot?
What is the device that melts if it gets too hot? An electrical fuse is a device that sacrifices itself to provide over-current protection in an electrical circuit. If too much current flows, the fuse wire rises to a higher temperature and melts, thus opening the circuit, but destroying the fuse. Does heat bend metal […]
When you reach the top of your jump on a trampoline?
What is the half life of a first-order reaction if time required to decrease?
What is the half life of a first-order reaction if time required to decrease? Concentration is reduced to 25%. It means it takes two half-lives to decrease the concentration of reactant from 0.8 M to 0.2 M in first-order reaction. Hence, half-life of the reaction is 12/2 = 6 hours. The half life of reaction […]
What is the main function of solenoid valve?
What is the main function of solenoid valve? Solenoid valves are control units which, when electrically energized or de-energized, either shut off or allow fluid flow. The actuator takes the form of an electromagnet. When energized, a magnetic field builds up which pulls a plunger or pivoted armature against the action of a spring. What […]
When we stop pedaling a bicycle it comes to rest after sometime describe the forces responsible for the change in state of motion of the bicycle?
When we stop pedaling a bicycle it comes to rest after sometime describe the forces responsible for the change in state of motion of the bicycle? Solution. If we stop pedalling a bicycle, moving at a uniform speed, it does not go on moving forever. It eventually comes to rest after some time. This is […]
What is symbol for d6 configuration?
Can 200 decibels kill a human?
Can 200 decibels kill a human? Acoustic grenades can go roughly from 120 decibels to 190 decibels. German researcher Jurgen Altmann showed that a blast of 210 decibels or more affects the inner organs — the lungs — and could cause internal injury that could lead to death. A blast will impact the body, and […]