Category: Physics

What is the zone around your vehicle that is unencumbered called? open zone What is the weight that transfers between the front and back of vehicle called? Roll What is vehicle weight transfer caused by? When accelerating, braking or steering, the body of the car rotates in the opposite direction, which compresses the suspension on […]

Is sawdust a better insulator than Styrofoam experiment? Sawdust isn’t a better insulator for many kinds of jobs. Styrofoam is generally lighter than most sawdusts because it has a higher fraction of air in it. Air cannot flow through styrofoam as easily as through sawdust, and so sawdust may have a greater convection component to […]

Does speed of sound depend on humidity? The speed of sound is affected by temperature and humidity. Because it is less dense, sound passes through hot air faster than it passes through cold air. Dry air absorbs far more acoustical energy than does moist air. This is because moist air is less dense than dry […]

How can 2 ohm 3 ohm and 6 ohm be connected to give an effective resistance of 4 ohm? Answer. Answer: Put 3 ohms in parallel with 6 ohms to produce an equivalent of 2 ohms by the parallel equivalent resistance rule [1/(1/3 + 1/6) = 2] Place that parallel combination in series with the […]

Can you open a digital gun safe with a magnet? Locksmith demonstrated recently at a business meeting in Vancouver, Canada. He showed that, using a rare earth magnet, one can exploit the nickel piece in this Sentry Electronic Safe to get it open without any damage. Are Cannon safes easy to break into? Whether you […]

What are three motion examples? What are some examples of motion energy? Wind. A ball being thrown. Someone running. A fish swimming. What is needed when describing the change in position of an object? You can describe the motion of an object by its position, speed, direction, and acceleration. An object is moving if its […]

What are two types of scientific explanation? Among the most common forms of explanation are causal explanation; deductive-nomological explanation, which involves subsuming the explanandum under a generalization from which it may be derived in a deductive argument (e.g., “All gases expand when heated; this gas was heated; therefore, this gas expanded”); and … Is Hempel […]

What is SI unit of Hertz? The symbol of the hertz in SI is Hz. The hertz is named for Heinrich Hertz (1857 – 1894), an early pioneer in electromagnetic research and the first person to demonstrate the transmission of electromagnetic waves through space. The hertz is a derived unit in the SI, equal to […]

How do state constitutions and laws relate to the US Constitution? State constitutions resemble the federal Constitution in that they outline the state government’s structure of legislative, executive and judicial branches as well as contain a bill of rights. Often, state constitutions are much longer and more detailed than the federal Constitution. What are three […]

What increases gene flow? Migrants change the distribution of genetic diversity among populations, by modifying allele frequencies (the proportion of members carrying a particular variant of a gene). When gene flow is impeded, there can be an increase in inbreeding, measured by the inbreeding coefficient (F) within a population. How do mutations affect an organism? […]