Category: Physics

What are some examples of physical and chemical properties? Physical properties include color, density, hardness, and melting and boiling points. A chemical property describes the ability of a substance to undergo a specific chemical change. What are the physical properties of materials? A material’s physical properties denote the physical state of materials that are exclusive […]

Could we manipulate the Higgs field? If the discovery of the Higgs boson particle pans out, will even more mind-bending technologies result? Theoretically, it’s possible, says Arizona State University physicist Lawrence Krauss; but practically, it’s unlikely. “If you could manipulate the Higgs field locally, you’d have a great ‘Star Trek’ device. What exactly is the […]

What happens when oil spills on land? As spilled oil on land prevents water absorption by the soil, spills on agricultural locations or grasslands have the effect of choking off plant life. Berms and trenches can be used to contain the spill, as long as their use does not allow the oil to leach into […]

Which US president served 3 terms? Roosevelt won a third term by defeating Republican nominee Wendell Willkie in the 1940 United States presidential election. He remains the only president to serve for more than two terms. What was the name of Franklin Roosevelt’s foreign policy? The main foreign policy initiative of Roosevelt’s first term was […]

Which one is more stable O or O 2? 1 Answer. O2+ is more stable than O2-. Because According to molecular orbital theory O2+ has 15 electrons &it has one electron in antibonding orbital. In the case of O2- 17 electrons are present &3 electrons are present in antibonding orbitals. Why O2 ion is more […]

What is phase difference measured in? Phase difference: The time interval by which a wave leads by or lags by another wave is called “Phase difference” or “Phase angle”. It is defined by ‘Φ’. The phase angle is measured in “Radians / Sec” or “Degrees / Sec” and the phase of a complete cycle is […]

Why the egg is less likely to break when dropped onto soft foam rather than onto a concrete floor? When the egg is dropped on a hard surface, dt is small thus F is large enough to break the egg. If it’s dropped on a soft surface, it still undergoes the same change in momentum, […]

Should I unplug appliances when not in use? The energy costs of plugged-in appliances can really add up, and unplugging these devices could save your up to $100 to $200 a year. Another benefit of unplugging your appliances is protection from power surges. Should I unplug microwave when not in use? People typically remember to […]

What are limiting factors for humans? Limiting factors are resources or other factors in the environment that can lower the population growth rate. Limiting factors include a low food supply and lack of space. Limiting factors can lower birth rates, increase death rates, or lead to emigration. What are three limiting factors for human population? […]

What is the maximum efficiency of diesel engine? Modern passenger car diesel engines may have an effective efficiency of up to 43%, whilst engines in large diesel trucks, and buses can achieve peak efficiencies around 45%. However, average efficiency over a driving cycle is lower than peak efficiency. What is the basic diesel cycle? The […]