Category: Physics

How is energy transferred in a bicycle? Mechanical energy usually means the sum of the kinetic energy and potential energy. So when you ride your bike you hope that the muscular (chemical) energy is converted mainly into mechanical energy. Unfortunately friction will produce heat and sound and will reduce the amount of mechanical energy that […]

What is Joule formula? In equation form: work (joules) = force (newtons) x distance (meters), where a joule is the unit of work, as defined in the following paragraph. In symbols: W = F x d. In practical terms, even a small force can do a lot of work if it is exerted over a […]

Is fission or fusion more dangerous? In 2019, National Geographic described nuclear fusion as the “holy grail for the future of nuclear power.” Not only would it produce more energy more safely, it would also produce far less harmful radioactive waste than fission, from which weapons-grade material in spent fuel rods taking millions of years […]

Is there a vacuum in double glazed windows? Double-glazed doors and windows are made up of two sealed sheets of glass with an insulating void between them. This gap is either in the form of a vacuum, or more commonly filled with a heavy inert gas such as argon. Together, the panes of glass and […]

Which brand of UPS is the best? The best uninterruptible power supply will safeguard your PC from unexpected power loss and surges….The best UPS for gaming PCs Cyberpower CP1500PFCLCD. The best UPS for most gamers. Cyberpower EC650LCD. The best UPS for your network and accessories. APC BE600M1. Which UPS is best for home? Best inverters […]

How do you use a ray diagram? 1. Pick a point on the top of the object and draw two incident rays traveling towards the mirror. Using a straight edge, accurately draw one ray so that it passes exactly through the focal point on the way to the mirror. Draw the second ray such that […]

What is an inertial frame of reference in physics? Within the realm of Newtonian mechanics, an inertial frame of reference, or inertial reference frame, is one in which Newton’s first law of motion is valid. An inertial frame of reference is one in which the motion of a particle not subject to forces is in […]

What is max current? Ampacity is defined as the maximum current, in amperes, that a conductor can carry continuously under the conditions of use without exceeding its temperature rating. Also described as current-carrying capacity. Electric current flowing through them causes voltage drop and power dissipation, which heats conductors. How do you find the maximum and […]

What is the Colour of K2Cr2O7? Potassium dichromate Names Appearance red-orange crystalline solid Odor odorless Density 2.676 g/cm3, solid Melting point 398 °C (748 °F; 671 K) What is the name for K2Cr2O7? Potassium dichromate(VI) What is the structure of K2Cr2O7? Potassium dichromate is an inorganic chemical compound possess immense industrial and laboratory importance. It […]

What frequency is 75 meters? All Frequencies in MHz 160 Meters: 1.885, 1.900, 1.945, 1.985 75 Meters: 3.825, 3.870 (West Coast), 3.880, 3.885 40 Meters: 7.290, 7.295 20 Meters: 14.286 Is 80 meters upper or lower sideband? Lower sideband (LSB)–The common single-sideband operating mode on the 40, 80 and 160-meter amateur bands. Upper sideband (USB)–The […]