What is the difference between flooding and storm surge? According to the Federal Emergency Management Agency (FEMA), floods are the most common and costly natural disaster. Flooding during a tropical storm or hurricane can be the result of a storm surge, but more often it is caused by torrential rains or a weather system stalling […]
How does density make something float?
What are the two major forms of scientific evidence?
What are the two major forms of scientific evidence? Primary research: Original research carried out in a clinical or laboratory setting. Examples include: observational studies and randomized controlled trials. Secondary research: Analysis of primary research, often to pool data or review the body of evidence on specific conditions. What is the weakest type of evidence? […]
What is unit of flow?
What is unit of flow? Flow, or volumetric flow rate, is simply the volume of fluid that passes per unit of time. In water resources, flow is often measured in units of cubic feet per second (cfs), cubic meters per second (cms), gallons per minute (gpm), millions of gallons per day (MGD), or other various […]
How do I calculate frequency?
How do I calculate frequency? How to calculate frequency Determine the action. Decide what action you want to use to determine the frequency. Select the length of time. Select the length of time over which you will measure the frequency. Divide the numbers. To calculate frequency, divide the number of times the event occurs by […]
What happens to the molecules as water freezes?
What happens to the molecules as water freezes? Point out that when water freezes, the water molecules have slowed down enough that their attractions arrange them into fixed positions. Water molecules freeze in a hexagonal pattern and the molecules are further apart than they were in liquid water. Note: The molecules in ice would be […]
Is it good to have electoral competition?
Is it good to have electoral competition? Yes, it is good to have political competition. A political competition may have many limitations such as it can results in factionalism, disunity and use of dirty tricks to win elections. However, free competitions in elections works better in a longer run. What are the advantages of competition? […]
What is the most important instrument for comparing bullets?
What is the most important instrument for comparing bullets? These bullets are then examined using a comparison microscope. The firearms examiner’s best tool is the comparison microscope, which is used to examine two different objects, bullets in this case, simultaneously. This lets the examiner compare the striations left on the fired bullets (2). Does the […]
Why does dynamic equilibrium occur?
Why does dynamic equilibrium occur? In chemistry, and in physics, a dynamic equilibrium exists once a reversible reaction occurs. Substances transition between the reactants and products at equal rates, meaning there is no net change. Reactants and products are formed at such a rate that the concentration of neither changes. What is the dynamic equilibrium […]
Which two factors are responsible for many of the unique physical and chemical properties of water?
Which two factors are responsible for many of the unique physical and chemical properties of water? Water molecules are polar, so they form hydrogen bonds. This gives water unique properties, such as a relatively high boiling point, high specific heat, cohesion, adhesion and density. What are 3 physical properties of water? 1 Physical Agents. Physical […]