Category: Physics

Can we send nuclear waste into space? We don’t send nuclear waste to space for the following reasons. Firstly, it is not economically feasible to send costly rockets into space, just to dump nuclear waste into space. However, with reusable rockets, the possibility do arise. But the re-used rocket will become radio active. Why dont […]

Why gravity is always attractive? In the case of gravity, mediated by spin 2 particles, charge is mass, which is always positive. Thus, q1q2 is always greater than zero, and gravity is always attractive. For spin 0 force mediators, however, there is no restriction on the charges and you can very well have repulsive forces. […]

What liquids melt faster? On average, water melted in 145 minutes; sweet tea in 119 minutes; Coke in 118 minutes; PowerAde in 115 minutes and milk melted in 102 minutes. My results were that milk melted the fastest over-all out of all the liquids. Does water melt ice faster? Assuming the air and water are […]

How much energy is stored in spring? if you stretch a spring with k = 2, with a force of 4N, the extension will be 2m. the work done by us here is 4×2=8J. in other words, the energy transferred to the spring is 8J. but, the stored energy in the spring equals 1/2x2x2^2=4J (which […]

Is mass quantized? As far as we know, mass is not quantized in either of these ways… mostly. For instance, only a small part of the mass of the proton comes from the masses of its quarks. Most of the proton’s mass is actually the kinetic energy of the quarks and gluons. Why is water […]

What happens in the story Le Morte d Arthur? Le Morte d’Arthur tells the story of King Arthur and his Knights at the Round Table. Although the war requires several battles, Arthur and his knights win and return to Guinevere and the other wives. Soon after, Launcelot establishes himself as the greatest knight in all […]

What is the drag coefficient of a f1 car? Typical Formula 1 car drag coefficients are between 0.7 and 1.1, depending on the circuit the car is set up for. ! A lot of this drag is due to the wings but a lot of it is due to the uncovered wheels. What car has […]

How do you know if planes are perpendicular? Planes are either parallel, or they’re perpendicular, otherwise they intersect each other at some other angle. parallel if the ratio equality is true. perpendicular if the dot product of their normal vectors is 0. Do lines have to meet to be perpendicular? Parallel lines never intersect. Perpendicular […]

What are five safety precautions for a laboratory? Five Lab Safety Rules You Must Follow Lab safety is one of the most important concerns when you are working with medical supplies, hazardous chemicals, and heavy-duty equipment. Wear Proper Lab Clothing. Handle Chemicals with Care. Properly Care for the Equipment. Always Locate Emergency Equipment. Keep Food […]

What is the critical angle of glass? about 42° What are the factors that influence refractive index? The two factors which affect the value of the refractive index are: Temperature. Refractive index values are usually determined at standard temperature. Wavelength of light. The refractive index varies with wavelength linearly because different wavelengths interfere to different […]