Category: Physics

What is the best barometric pressure for deer hunting? A high, stable barometer is also good hunting. After compiling our results, whitetails seem to move best when the pressure is between 29.90 and 30.30 inches with the best movement occurring at the higher end of that range, around 30.10 to 30.30 inches. What time are […]

How do you protect an overcurrent circuit? Plug-in fuses are used to protect a circuit board from overcurrent conditions. A glass fuse can be used as a plug-in fuse or in a fuse holder. What is the difference between overcurrent and overload protection? ANSWER: Overcurrent protection is protection against excessive currents or current beyond the […]

What is working distance in SEM? The working distance in the SEM is the distance at which the beam is focussed, normally the distance from the final pole piece of the lens to the sample when the image is in focus. It is variable by moving the stage up and down (Z-height) and by focussing […]

What happens to the force of gravitation between two objects I if masses of objects gets doubled and distance is five times? Answer: From the relationship, (i) If the mass of one object (say body 1) is doubled, then Thus, the gravitational force between the two objects gets doubled. (ii) If the distance between the […]

Does a line of best fit have to go through the first and last point? You have just constructed a best fit line through the data! Note that it is not necessary for the line to pass through ANY of the points on the plot, it is only important that your line bisect (cut in […]

Does meat cook slower at high altitude? A. Some foods take longer to cook by some methods at altitudes higher than 3,000 feet above sea level. But other foods actually take less time, according to the Department of Agriculture. The key factor is declining air pressure at higher altitudes. How much longer do you bake […]

Can homework kill you? “The disadvantages of homework are clear to everyone: exhaustion, frustration, loss of time to pursue other interests and often diminution of interest in learning,” he said. “Homework is like medicine. If you take too little, it does nothing. If you take too much, it can kill you,” Cooper said. How long […]

What is insulator and its type? Types of Insulators and Their Applications. An insulator gives support to the overhead line conductors on the poles to prevent the current flow toward earth. But the most common material used in the insulator is porcelain and also special composition, steatite, glass materials are also used. Which type of […]

What is P F A? Pressure is the force per unit perpendicular area over which the force is applied. In equation form, pressure is defined as. P=FA P = F A . The SI unit of pressure is pascal and 1 Pa=1 N/m2 1 Pa = 1 N/m 2 . What does PFA mean in […]

Is it cheaper to put the fire on or the heating? Gas is often much cheaper than other sources of heating – up to 70% compared to electric fires. This is because gas has its own source, whereas electric is heated via another source. Gas fires will typically cost around 5 pence per KW to […]