Category: Physics

Which group on the periodic table is highly reactive in water? alkali metals How does Steel fail in a fire? During a fire event, the mechanical properties of steel deteriorate under the elevated temperature. A reduction in yield strength, stiffness, and modulus of elasticity can occur. Because of the additional material, connections are exposed to […]

What hurts more hockey puck or baseball? They can travel about the same speed (slapshot vs homerun hit) but a puck weighs more and, from experience of both, the shape of the puck causes more pain. Plus if you get hit by a puck you’re likely in a way colder environment which makes it worse. […]

What is energy band with diagram? In solid-state physics of semiconductors, a band diagram is a diagram plotting various key electron energy levels (Fermi level and nearby energy band edges) as a function of some spatial dimension, which is often denoted x. What is the importance of Fermi energy? It is used in semiconductors and […]

How much is a power hammer? A used hammer in perfect running condition 3000 to 15000. Of course that depends on make, age, size and true running condition. And same for new hammers depending on make and size. How does a forging hammer work? A forging hammer derives its power from the kinetic energy of […]

How do I measure distance on maps app? Step 1: Add the first point On your Android phone or tablet, open the Google Maps app . Touch and hold anywhere on the map. You’ll see a red pin appear. At the bottom, tap the name of the place. On the place’s page, scroll down and […]

Is time related to gravity? The gravitational field is really a curving of space and time. The stronger the gravity, the more spacetime curves, and the slower time itself proceeds. Gravitational time dilation occurs whenever there is difference in the strength of gravity, no matter how small that difference is. Who said time is relevant? […]

How is energy transferred in an exothermic reaction? Exothermic reactions These are reactions that transfer energy to the surroundings (ie the energy exits from the reaction, hence the name exothermic). The energy is usually transferred as heat energy, causing the reaction mixture and its surroundings to become hotter. How does a reaction release or absorb […]

Which state of matter moves the fastest? Phases of matter A B molecules move fastest in this phase plasma molecules move faster than liquids in this state gas molecules move the slowest in this state solid molecules move around each other in this state liquid Which state holds its own shape? solids Does it hold […]

What is one way that geothermal energy is better than fossil fuels for the environment? Geothermal power plants do not burn fuel to generate electricity, but they may release small amounts of sulfur dioxide and carbon dioxide. Geothermal power plants emit 97% less acid rain-causing sulfur compounds and about 99% less carbon dioxide than fossil […]

What is the electronegativity of CO2? For example, consider the carbon dioxide (CO2) molecule. The carbon-oxygen double bonds in the linear CO2 molecule are polar (electronegativities: C = 2.5, O = 3.5). How do you find the electronegativity of CO2? How would I find the electronegativity of CO2? First calculate the electronegativity of each bond […]