Category: Physics

What is the typical size of magnetic domains? 0.1 to 1 mm How do you align magnetic domains? Use the Magnet Position slider to move the magnet closer to the ferromagnetic material so that it interacts with the field lines. As you repeat the process, you’ll notice the domains gradually aligning – with the field […]

What are the limits of mathematical models? It is difficult to represent real-world systems in terms of mathematical relationships. Data are often unavailable or inaccurate. Combining the sub- system models to create the model is seldom simple. Assumptions and estimates must be made at almost every step of the process. What is the meaning of […]

What is the normal oxygen consumption? The human lung consumes about 5-6 ml oxygen per minute at an esophageal temperature of 28 degrees C. Prebypass whole-body oxygen consumption measured at nearly normothermic conditions was 198 +/- 28 ml/min. Mean lung and whole-body respiratory quotients were similar (0.84 and 0.77, respectively). What is the rate of […]

Does the work depend on? No, work done by force at any instant does not depend upon the velocity at that instant. Work is dependent on the force and displacement. Does the work depend upon the velocity of the body? No work done not depend upon the velocity of the body . its depend on […]

What is an awareness level responder? Awareness-level first responders are trained to act only defensively. Recognize the chemicals used at your facility, learn about potential spill or release scenarios, and then learn how to identify chemical spills or releases. Evacuate others and yourself from the spill area. Which action is within the awareness level scope […]

What will eventually happen to the concentration of particles inside and outside the cell? If the number of particles inside the cell is higher than the number of particles outside of the cell a hypotonic system has been established. Again the water molecules move more easily than the particles inside the cell. With the concentration […]

Can a cyclic group be infinite? Every cyclic group is virtually cyclic, as is every finite group. An infinite group is virtually cyclic if and only if it is finitely generated and has exactly two ends; an example of such a group is the direct product of Z/nZ and Z, in which the factor Z […]

What is the formula of mass of Earth? We know that the acceleration due to gravity is equal to 9.8 m/s2, the Gravitational constant (G) is 6.673 × 10−11 Nm2/kg2, the radius of the Earth is 6.37 × 106 m, and mass cancels out. When we rearrange the equation and plug all the numbers in, […]

How far away from a nuclear blast is safe? six feet How can cockroaches survive a nuclear bomb but not raid? Why do cockroaches survive nuclear attacks but are killed by Raid? Nuclear bombs not directly aimed at cockroaches may miss them underground for long enough to allow for radiation to dissipate enough for their […]

How do you determine the state of matter in a chemical equation? Notation for a Chemical Equation The state of matter of each compound or molecule is indicated in subscript next to the compound by an abbreviation in parentheses. For example, a compound in the gas state would be indicated by (g), solid (s), liquid […]