Category: Physics

Which ion has a charge of 2? iron Which part of an atom is mostly empty space? The nucleus makes up a tiny proportion of the space occupied by an atom, while the electrons make up the rest. According to quantum electrodynamics, the space is filled by an electron field around the nucleus which neutralizes […]

Can a Jedi control time? Force Time was a Force power used mainly by Jedi Masters in the Old Jedi Order. The power allowed a user to freeze and control time and space, and it was first used by Darth Perseus when he used it to stop his apprentice, Darth Asmodeus, from killing his son. […]

How do you find the displacement of two vectors? The displacement d is (x2 – x1) units in the x-direction plus (y2 – y1) units in the y-direction. The magnitude of the displacement is d = ((x2 – x1)2 + (y2 – y1)2)½. This follows from the Pythagorean theorem. How do you calculate position? Position […]

Does a capacitor have resistance? Since the capacitor is basically a charge storage, there is no such equation as this hence you can say there is no electrical resistance. The impedance (or equivalent resistance) for a capacitor is 1/ωC where ω is the current frequency and C the capacitance. For DC, ω=0 and hence the […]

Is a Ferris wheel sin or cos? One of the most common applications of trigonometric functions is, Ferris wheel, since the up and down motion of a rider follows the shape of sine or cosine graph. How do you find the radius from the diameter? Just remember to divide the diameter by two to get […]

Which one is having lesser resistance a 60 watt bulb or 40 watt bulb? Assuming both bulbs are designed to operate at the same voltage V, then it’s obvious that the higher the bulb’s power rating P, the lower its resistance R, thus the 60W bulb has a lower resistance than the 40W bulb. Which […]

What is the relationship between speed and pressure in a fluid? This inverse relationship between the pressure and speed at a point in a fluid is called Bernoulli’s principle. Bernoulli’s principle: At points along a horizontal streamline, higher pressure regions have lower fluid speed and lower pressure regions have higher fluid speed. Is there a […]

Who is the smallest element? helium Is Element 119 possible? Ununennium, also known as eka-francium or element 119, is the hypothetical chemical element with symbol Uue and atomic number 119. It is the lightest element that has not yet been synthesized. Which is the smallest unit of matter? Atom What’s the smartest city in the […]

How do I get rid of RFI interference? Stopping It. There are two basic strategies to control RFI. The first prevents it from coupling in the first place by using filters or arc snubbers at the source, relocating equipment or rerouting cables, using signal path ground isolators or adding shielding or ferrite chokes to cables. […]

What is the main goal of environmental science? One of the major goals of environmental science is to understand and to solve environmental problems. In order to accomplish this goal, scientists study two main types of interactions between humans and their environment. One area of focus is on how we use natural resources, such as […]