Category: Physics

Is whistleblowing justified? The conditions in which whistle blowing is morally justified are: 1. A product or policy that will commit serious and considerable harm to the public. The employee must have documented evidence that is convincing to a reasonable level so that the facts can be proved to the outside public and to the […]

Is work done when sitting? Work is done when a force that is applied to an object moves that object. Driving to your job is not work because you just sit, but the energy your car engine uses to move the car does work. You have to exert a force AND move something to qualify […]

What do Earth and Mars have in common? What’s more, we have come to see that even in its current form, Mars and Earth actually have a lot in common. Between the two planets, there are similarities in size, inclination, structure, composition, and even the presence of water on their surfaces. What is the similarities […]

Can Mrna reverse aging? In a paper published in March 2020 in the journal Nature Communications, similar proteins generated by messenger RNA are shown in lab cultures to reset the epigenetic clock, restore a regenerative response to aging muscle stem cells, and reduce inflammation in cartilage cells. Can we reverse aging? Is it possible to […]

Can I use a 15 watt LED bulb in a 60W fixture? When it comes to replacing old incandescent bulbs with LEDs, a common question that customers ask is: “Can I use an LED bulb that has a higher wattage equivalent than my fixture allows?” The simple answer is yes, as long as the LED […]

Can I connect 12v led to car battery? Answering your question: you can’t use a 12v battery to power a 12v led strip directly. a fully charged lead acid will have 13.8v which will burn out your led strip if you are doing so. You don’t need a current limited device. it will drop your […]

How do you find the surface flux? Find the flux of the vector field in the negative z direction through the part of the surface z=g(x,y)=16-x^2-y^2 that lies above the xy plane (see the figure below). Hence, the flux through the surface in the downward z direction is -128*pi cubic units per unit time. What […]

Is a complete path for current flow? A circuit is a complete path around which electricity can flow. It must include a source of electricity, such as a battery. Materials that allow electric current to pass through them easily, called conductors, can be used to link the positive and negative ends of a battery, creating […]

What is the heat capacity of ice? The specific heat capacity of water at -10 degrees Celsius (ice) is 2.05 joules/gram * degree Kelvin. The specific heat capacity of water at 100 degrees Celsius (steam) is 2.080 joules/gram * degree Kelvin. Why does Smart Water not freeze? It’s more or less impossible to get solid […]

Why do human eyes not glow in the dark? Although pigment from the retina and from pupil can influence the color of the shine, most of it comes from the slight differences in levels of elements like zinc in the reflective layer. It’s the lack of this layer that causes humans to have shining eyes […]