How do you calculate energy change? To calculate an energy change for a reaction: add together the bond energies for all the bonds in the reactants – this is the ‘energy in’ add together the bond energies for all the bonds in the products – this is the ‘energy out’ energy change = energy in […]
What do you mean by eigen value and eigen function?
What do you mean by eigen value and eigen function? Such an equation, where the operator, operating on a function, produces a constant times the function, is called an eigenvalue equation. The function is called an eigenfunction, and the resulting numerical value is called the eigenvalue. Eigen here is the German word meaning self or […]
Is electromagnetic force affected by intervening medium?
Is electromagnetic force affected by intervening medium? EM force does not need any intervening medium. Why is gravitational force independent of medium? Gravity is unipolar, attractive. So when it goes through a medium, there is no polarizing effect or polarizing forces. Thus the gravitational constant is independent of the intervening medium. Does electrostatic force depend […]
What kind of variable is behavior?
What kind of variable is behavior? An ordinal variable is a categorical variable for which the possible categories can be placed in a specific order or in some ‘natural’ way. In Table 2, the variable ‘behaviour’ is ordinal because the category ‘Excellent’ is better than the category ‘Very good’, etc. Which of the following is […]
Which color star is the coldest?
Which color star is the coldest? red What is the most powerful car engine ever made? BHP-per-litre: the world’s most powerful car engines Bugatti Chiron: 185.0bhp/litre. Ford GT: 185.1bhp/litre. Nissan GT-R50: 186.9bhp/litre. McLaren Senna: 197.5bhp/litre. SSC Ultimate Aero TT: 202.8bhp/litre. Mercedes-AMG A45: 208.4bhp/litre. Mitsubishi Evo X FQ-440 MR: 220.2bhp/litre. Koenigsegg Jesko: 313.6bhp/litre. Koenigsegg’s latest car […]
Which type of mirror can form a real image?
Which type of mirror can form a real image? Solution: Concave mirrors can form real images. Convex and plane mirrors always form virtual images. Want to top your science exam ? How important is plane mirror to you? Plane mirror reflections create upright virtual images at the same magnification, or size, and distance as the […]
When a force is applied on a body it may change its?
Has Chang E 5 landed?
Has Chang E 5 landed? Like its predecessors, the spacecraft is named after the Chinese moon goddess Chang’e….Chang’e 5. Spacecraft properties Landing date 16 December 2020 17:59 UTC Return capsule Landing site Inner Mongolia, China Lunar orbiter Orbital insertion 28 November 2020 12:58 UTC Is Chang E real? Chang’e, Wade-Giles romanization Ch’ang O, the Chinese […]
How do astronomers detect dark matter?
How do astronomers detect dark matter? Galaxy clusters are particularly important for dark matter studies since their masses can be estimated in three independent ways: From the scatter in radial velocities of the galaxies within clusters. From X-rays emitted by hot gas in the clusters. Is dark matter invisible? Scientists have not yet observed dark […]