Category: Physics

What state has the best four seasons? Western North Carolina What is the #1 most dangerous state for weather disasters? These are the nine states with the most dangerous weather. Alabama. • Missouri. • 5-year average annual weather-related fatalities: 8.4 per 1 million residents. Wyoming. • 5-year average annual weather-related fatalities: 8.0 per 1 million […]

Which is the correct order of the steps for cleaning and sanitizing wash sanitize rinse air dry? rinse, scrape, or soak items before washing them. wash items in the first sink. rinse items in second sink. sanitize items in third sink. air dry items on a clean and sanitized surface. What are the 2 methods […]

Is rural living safe? Compared to cities and suburban areas, rural locations are the most dangerous places to live. A study found that “your risk of death is actually about 22 percent higher in the most rural counties in America than in the most urban ones.” Death rates in the exurbs are higher for a […]

How are convex lenses used in everyday life? They are used to make telescopes. 1) Convex lens is used in microscopes and magnifying glasses to subject all the light to a specific point. 2) Convex lens is used as a camera lens in cameras as they focus light for a clean picture. 3) Convex lens […]

What force acts on the marble to slow it to a stop? Friction What was the force that was acting on the marble? A “push” centripetal force acted on the marble: this force, supplied by the bottom of the cup, kept the marble going in a circular path and not flying away in a straight […]

Can your body defeat cancer? Immune cells eliminate tiny tumours In the very early stages of cancer our immune cells do a good job of killing individual cancer cells as they arise. This is known as the ‘eliminating phase’, where immune cells are in control of the tumour and calmly carry out their work. Can […]

What is the concept of black body? Blackbody, also spelled black body, in physics, a surface that absorbs all radiant energy falling on it. The term arises because incident visible light will be absorbed rather than reflected, and therefore the surface will appear black. What is the absorptive power of a black body? For a […]

How high are waves in the middle of the ocean? 5m height (so 10m peak to valley) is quite common, but since there are many different sized waves traveling at different speeds, sometimes they come together and you get a brief but very large wave. These “rogue waves” can reach 20-30m in height. What is […]

What is the final velocity when a body is dropped from a height? Answer: final velocity of the object will be 0 m/s. What is the initial velocity when a body is dropped from a height? Initial velocity of a body when dropped from a height is zero, i.e., u=0. When an object is dropped […]

What lives in a salt marsh? Composed of fine silts and clays, mud flats harbor burrowing creatures including clams, mussels, oysters, fiddler crabs, sand shrimp, and bloodworms. Salt marshes are salty because they are flooded by seawater every day. They are marshy because their ground is composed of peat. How do humans impact salt marshes? […]