Examlex
If the de Broglie wavelength of an electron is 380 nm,what is the speed of this electron? (melectron = 9.11 × 10-31 kg,h = 6.626 × 10-34 J ∙ s)
Growth
An increase in size, number, value, or strength.
Sigmund Freud
An Austrian neurologist and the founder of psychoanalysis, a clinical method for treating psychopathology through dialogue between a patient and a psychoanalyst.
Contradiction
A situation or statement in which two or more opposing things are true or valid at the same time, highlighting a discrepancy or conflict.
Vaillant Study
A research project that tracked the physical and emotional health of a group of men over several decades, aiming to identify predictors of healthy aging.
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