Category: Physics

What size generator do I need to run a 2.5 ton AC unit? A 10KW unit should be able to run the average 2.5 ton a.c without too much trouble. Can I run my central air on a generator? Standby generators have the strength to power central air conditioners, so you can return to a […]

What is the major difference between simmering and poaching? Poaching is a technique typically used for delicate foods including eggs, fish and fruits. In order to poach food effectively, it must be completely submerged in water. Simmering requires the temperature of the liquid to be between 185 to 200 degrees. What food can be boiled? […]

How much did a covered wagon cost in the 1800s? It was costly—as much as $1,000 for a family of four. That fee included a wagon at about $100. Usually four or six animals had to pull the wagon. Oxen were slower, but held up better than horses or mules. What type of animal was […]

How much force can a hydraulic press produce? In case the pressure gauge reads 1000 PSI, the 1000 pounds per square inch is applied to 10 square inches. If every square inch of the surface area applies 1000 pounds of force, the 10 square inches will exert a total of 10,000 pounds of force. What […]

What is the five number summary for this data set? A five-number summary is especially useful in descriptive analyses or during the preliminary investigation of a large data set. A summary consists of five values: the most extreme values in the data set (the maximum and minimum values), the lower and upper quartiles, and the […]

Is mutual inductance always positive? The mutual inductance LM can be either positive or negative depending on the polarity of the mutual voltage in reference to the direction of the inducing current. Note that the mutual voltage in the second coil can be positive or negative based on the orientation of the coils. Why is […]

What is a Fourier power spectrum? The power spectrum of a time series. describes the distribution of power into frequency components composing that signal. According to Fourier analysis, any physical signal can be decomposed into a number of discrete frequencies, or a spectrum of frequencies over a continuous range. What is voltage spectrum? VSpec calculates […]

How much does an F 16 Block 70 cost? On 10 July 2019, Bulgaria approved the purchase of eight F-16V Block 70/72 for $1.25 billion. Which is better f15 or f16? The F-15 is a twin-engine fighter jet capable of extremely high speeds and altitudes, while the F-16 is a less powerful but more maneuverable […]

Is reduction Exergonic or Endergonic? The dehydrogenase enzyme reduces acetaldehyde to ethanol, which is an endergonic (energy-requiring) reaction: The reduction of acetaldehyde is coupled to the oxidation of NADH to NAD+, which is an exergonic reaction. Do oxidation and reduction always occur together? So oxidation and reduction always occur together; it is only mentally that […]

Is density directly proportional to pressure? Density is directly proportional to pressure and indirectly proportional to temperature. As pressure increases, with temperature constant, density increases. What does pressure equal to? Pressure (p) is defined as the normal force F per unit area A over which the force is applied, or. p=FA. p = F A […]