What is direction of acceleration vector? Acceleration is a vector in the same direction as the change in velocity, Δv. Since velocity is a vector, it can change either in magnitude or in direction. Acceleration is therefore a change in either speed or direction, or both. What direction is the initial velocity vector? The two […]
How do pipettes work?
What is space noise?
What is space noise? Cosmic noise, also known as galactic radio noise, is not actually sound, but a physical phenomenon derived from outside of the Earth’s atmosphere. Cosmic microwave background radiation (CMBR) from outer space is also a form of cosmic noise. How can we still see the CMB? You can’t see the CMB with […]
What do you notice about the colors of the high pressure and low pressure symbols?
What do you notice about the colors of the high pressure and low pressure symbols? The colors of high and low pressure areas are chosen to represent what occurs aloft, not at the surface. Lows are composed of warm rising air; highs of cold sinking air. That’s why highs are represented by blue, which equates […]
What causes a Type 1 supernova to detonate?
What causes a Type 1 supernova to detonate? What causes a Type I supernova to detonate? In a core-collapse supernova, the outer part of the core rebounds from the inner, high-density core, destroying the entire outer part of the star. What is left behind after a Type 1 supernova? Supernova remnant, nebula left behind after […]
When a mass M is attached to a vertical spring and slowly released?
When a mass M is attached to a vertical spring and slowly released? An object of a mass M is attached to a vertical spring which slowly lowers to equilibrium position. This extends the spring x. If the same objects is attached to the same vertical spring but permitted to fall suddenly instead, then the […]
What is the starting point in supply strategy?
What is the starting point in supply strategy? Supply Markets are the starting point for Supply Chains. How does Walmart use CPFR? Collaborative Planning, Forecasting, and Replenishment (CPFR) Of course, now Walmart uses Retail Link and Supplier Scorecards to collaborate with all Walmart suppliers on planning, forecasting, and replenishment. The result is a partnership relationship […]
What is covalent bond write its properties?
What is covalent bond write its properties? Covalent compounds have bonds where electrons are shared between atoms. Due to the sharing of electrons, they exhibit characteristic physical properties that include lower melting points and electrical conductivity compared to ionic compounds. Is h20 a double covalent bond? i.e. $$H$$ bonding with other molecules of water but […]
How does the Clean Air Act affect us today?
How does the Clean Air Act affect us today? Today, as in the past, the Clean Air Act continues to cut pollution and protect the health of American families and workers. Fewer premature deaths and illnesses means Americans experience longer lives, better quality of life, lower medical expenses, fewer school absences, and better worker productivity. […]
What are the 4 major biogeochemical cycles?
What are the 4 major biogeochemical cycles? Some of the major biogeochemical cycles are as follows: (1) Water Cycle or Hydrologic Cycle (2) Carbon-Cycle (3) Nitrogen Cycle (4) Oxygen Cycle. The producers of an ecosystem take up several basic inorganic nutrients from their non-living environment. These materials get transformed into the bio mass of the […]