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In-the-figure-shown-below-the-block-of-mass-2-kg-is-at-rest-If-the-spring-constant-of-both-the-springs-A-and-B-is-100-N-m-and-spring-B-is-cut-at-t-0-then-magnitude-of-acceleration-of-block-immedi

Question Number 20989 by Tinkutara last updated on 09/Sep/17 $$\mathrm{In}\:\mathrm{the}\:\mathrm{figure}\:\mathrm{shown}\:\mathrm{below},\:\mathrm{the}\:\mathrm{block}\:\mathrm{of} \\ $$$$\mathrm{mass}\:\mathrm{2}\:\mathrm{kg}\:\mathrm{is}\:\mathrm{at}\:\mathrm{rest}.\:\mathrm{If}\:\mathrm{the}\:\mathrm{spring}\:\mathrm{constant} \\ $$$$\mathrm{of}\:\mathrm{both}\:\mathrm{the}\:\mathrm{springs}\:{A}\:\mathrm{and}\:{B}\:\mathrm{is}\:\mathrm{100}\:\mathrm{N}/\mathrm{m} \\ $$$$\mathrm{and}\:\mathrm{spring}\:{B}\:\mathrm{is}\:\mathrm{cut}\:\mathrm{at}\:{t}\:=\:\mathrm{0},\:\mathrm{then} \\ $$$$\mathrm{magnitude}\:\mathrm{of}\:\mathrm{acceleration}\:\mathrm{of}\:\mathrm{block} \\ $$$$\mathrm{immediately}\:\mathrm{is} \\ $$ Commented by Tinkutara…

A-ball-of-mass-m-is-moving-with-a-velocity-u-rebounds-from-a-wall-with-same-speed-The-collision-is-assumed-to-be-elastic-and-the-force-of-interaction-between-the-ball-and-the-wall-varies-as-shown-in-

Question Number 20984 by Tinkutara last updated on 09/Sep/17 $$\mathrm{A}\:\mathrm{ball}\:\mathrm{of}\:\mathrm{mass}\:{m}\:\mathrm{is}\:\mathrm{moving}\:\mathrm{with}\:\mathrm{a} \\ $$$$\mathrm{velocity}\:{u}\:\mathrm{rebounds}\:\mathrm{from}\:\mathrm{a}\:\mathrm{wall}\:\mathrm{with} \\ $$$$\mathrm{same}\:\mathrm{speed}.\:\mathrm{The}\:\mathrm{collision}\:\mathrm{is}\:\mathrm{assumed} \\ $$$$\mathrm{to}\:\mathrm{be}\:\mathrm{elastic}\:\mathrm{and}\:\mathrm{the}\:\mathrm{force}\:\mathrm{of}\:\mathrm{interaction} \\ $$$$\mathrm{between}\:\mathrm{the}\:\mathrm{ball}\:\mathrm{and}\:\mathrm{the}\:\mathrm{wall}\:\mathrm{varies}\:\mathrm{as} \\ $$$$\mathrm{shown}\:\mathrm{in}\:\mathrm{the}\:\mathrm{figure}\:\mathrm{given}\:\mathrm{below}.\:\mathrm{The} \\ $$$$\mathrm{value}\:\mathrm{of}\:{F}_{{m}} \:\mathrm{is} \\ $$…

A-50-kg-log-rest-on-the-smooth-horizontal-surface-A-motor-deliver-a-towing-force-T-as-shown-below-The-momentum-of-the-particle-at-t-5-s-is-

Question Number 20986 by Tinkutara last updated on 09/Sep/17 $$\mathrm{A}\:\mathrm{50}\:\mathrm{kg}\:\mathrm{log}\:\mathrm{rest}\:\mathrm{on}\:\mathrm{the}\:\mathrm{smooth}\:\mathrm{horizontal} \\ $$$$\mathrm{surface}.\:\mathrm{A}\:\mathrm{motor}\:\mathrm{deliver}\:\mathrm{a}\:\mathrm{towing}\:\mathrm{force} \\ $$$${T}\:\mathrm{as}\:\mathrm{shown}\:\mathrm{below}.\:\mathrm{The}\:\mathrm{momentum}\:\mathrm{of} \\ $$$$\mathrm{the}\:\mathrm{particle}\:\mathrm{at}\:{t}\:=\:\mathrm{5}\:\mathrm{s}\:\mathrm{is} \\ $$ Commented by Tinkutara last updated on 09/Sep/17…

A-particle-is-observed-from-two-frames-S-1-and-S-2-The-frame-S-2-moves-with-respect-to-S-1-with-an-acceleration-a-Let-P-1-and-P-2-be-the-pseudo-forces-on-the-particle-when-seen-from-S-1-and-S

Question Number 20978 by Tinkutara last updated on 09/Sep/17 $$\mathrm{A}\:\mathrm{particle}\:\mathrm{is}\:\mathrm{observed}\:\mathrm{from}\:\mathrm{two}\:\mathrm{frames} \\ $$$${S}_{\mathrm{1}} \:\mathrm{and}\:{S}_{\mathrm{2}} .\:\mathrm{The}\:\mathrm{frame}\:{S}_{\mathrm{2}} \:\mathrm{moves}\:\mathrm{with} \\ $$$$\mathrm{respect}\:\mathrm{to}\:{S}_{\mathrm{1}} \:\mathrm{with}\:\mathrm{an}\:\mathrm{acceleration}\:{a}. \\ $$$$\mathrm{Let}\:{P}_{\mathrm{1}} \:\mathrm{and}\:{P}_{\mathrm{2}} \:\mathrm{be}\:\mathrm{the}\:\mathrm{pseudo}\:\mathrm{forces}\:\mathrm{on} \\ $$$$\mathrm{the}\:\mathrm{particle}\:\mathrm{when}\:\mathrm{seen}\:\mathrm{from}\:{S}_{\mathrm{1}} \:\mathrm{and}\:{S}_{\mathrm{2}}…

What-would-be-the-percentage-composition-by-volume-of-a-mixture-of-CO-and-CH-4-whose-10-5-mL-requires-9-mL-oxygen-for-complete-combustion-

Question Number 20976 by Tinkutara last updated on 09/Sep/17 $$\mathrm{What}\:\mathrm{would}\:\mathrm{be}\:\mathrm{the}\:\mathrm{percentage} \\ $$$$\mathrm{composition}\:\mathrm{by}\:\mathrm{volume}\:\mathrm{of}\:\mathrm{a}\:\mathrm{mixture}\:\mathrm{of} \\ $$$$\mathrm{CO}\:\mathrm{and}\:\mathrm{CH}_{\mathrm{4}} ,\:\mathrm{whose}\:\mathrm{10}.\mathrm{5}\:\mathrm{mL}\:\mathrm{requires} \\ $$$$\mathrm{9}\:\mathrm{mL}\:\mathrm{oxygen}\:\mathrm{for}\:\mathrm{complete}\:\mathrm{combustion}? \\ $$ Terms of Service Privacy Policy Contact:…

Boyle-temperature-is-given-by-1-T-B-a-Rb-2-2-T-B-a-Rb-3-T-B-a-27b-2-4-T-B-b-aR-

Question Number 20972 by Tinkutara last updated on 09/Sep/17 $$\mathrm{Boyle}\:\mathrm{temperature}\:\mathrm{is}\:\mathrm{given}\:\mathrm{by} \\ $$$$\left(\mathrm{1}\right)\:\mathrm{T}_{\mathrm{B}} \:=\:\frac{\mathrm{a}}{\mathrm{Rb}^{\mathrm{2}} } \\ $$$$\left(\mathrm{2}\right)\:\mathrm{T}_{\mathrm{B}} \:=\:\frac{\mathrm{a}}{\mathrm{Rb}} \\ $$$$\left(\mathrm{3}\right)\:\mathrm{T}_{\mathrm{B}} \:=\:\frac{\mathrm{a}}{\mathrm{27b}^{\mathrm{2}} } \\ $$$$\left(\mathrm{4}\right)\:\mathrm{T}_{\mathrm{B}} \:=\:\frac{\mathrm{b}}{\mathrm{aR}} \\…

A-small-solid-spherical-ball-of-high-density-is-dropped-in-a-viscous-liquid-Its-journey-in-the-liquid-is-best-described-in-the-following-figure-by-the-curve-

Question Number 20973 by Tinkutara last updated on 09/Sep/17 $$\mathrm{A}\:\mathrm{small}\:\mathrm{solid}\:\mathrm{spherical}\:\mathrm{ball}\:\mathrm{of}\:\mathrm{high} \\ $$$$\mathrm{density}\:\mathrm{is}\:\mathrm{dropped}\:\mathrm{in}\:\mathrm{a}\:\mathrm{viscous}\:\mathrm{liquid}. \\ $$$$\mathrm{Its}\:\mathrm{journey}\:\mathrm{in}\:\mathrm{the}\:\mathrm{liquid}\:\mathrm{is}\:\mathrm{best}\:\mathrm{described} \\ $$$$\mathrm{in}\:\mathrm{the}\:\mathrm{following}\:\mathrm{figure}\:\mathrm{by}\:\mathrm{the}\:\mathrm{curve} \\ $$ Commented by Tinkutara last updated on 09/Sep/17…

lemme-join-miss-Tawa-Tawa-here-It-takes-8-painters-working-at-the-same-rate-5-hours-to-paint-a-house-If-6-painters-are-working-at-2-3-the-rate-of-the-8-painters-how-long-would-it-take-them-to-paint

Question Number 20955 by NECx last updated on 09/Sep/17 $$\mathrm{lemme}\:\mathrm{join}\:\mathrm{miss}\:\mathrm{Tawa}\:\mathrm{Tawa}\:\mathrm{here}. \\ $$$$ \\ $$$$\mathrm{It}\:\mathrm{takes}\:\mathrm{8}\:\mathrm{painters}\:\mathrm{working}\:\mathrm{at}\:\mathrm{the} \\ $$$$\mathrm{same}\:\mathrm{rate}\:,\mathrm{5}\:\mathrm{hours}\:\mathrm{to}\:\mathrm{paint}\:\mathrm{a} \\ $$$$\mathrm{house}.\mathrm{If}\:\mathrm{6}\:\mathrm{painters}\:\mathrm{are}\:\mathrm{working}\:\mathrm{at} \\ $$$$\mathrm{2}/\mathrm{3}\:\mathrm{the}\:\mathrm{rate}\:\mathrm{of}\:\mathrm{the}\:\mathrm{8}\:\mathrm{painters},\mathrm{how} \\ $$$$\mathrm{long}\:\mathrm{would}\:\mathrm{it}\:\mathrm{take}\:\mathrm{them}\:\mathrm{to}\:\mathrm{paint} \\ $$$$\mathrm{the}\:\mathrm{same}\:\mathrm{house}? \\…

A-graph-of-x-versus-t-is-shown-in-Figure-Choose-correct-alternatives-from-below-a-The-particle-was-released-from-rest-at-t-0-b-At-B-the-acceleration-a-gt-0-c-At-C-the-velocity-and-the-ac

Question Number 20936 by Tinkutara last updated on 08/Sep/17 $$\mathrm{A}\:\mathrm{graph}\:\mathrm{of}\:{x}\:\mathrm{versus}\:{t}\:\mathrm{is}\:\mathrm{shown}\:\mathrm{in}\:\mathrm{Figure}. \\ $$$$\mathrm{Choose}\:\mathrm{correct}\:\mathrm{alternatives}\:\mathrm{from}\:\mathrm{below}. \\ $$$$\left({a}\right)\:\mathrm{The}\:\mathrm{particle}\:\mathrm{was}\:\mathrm{released}\:\mathrm{from} \\ $$$$\mathrm{rest}\:\mathrm{at}\:{t}\:=\:\mathrm{0} \\ $$$$\left({b}\right)\:\mathrm{At}\:{B},\:\mathrm{the}\:\mathrm{acceleration}\:{a}\:>\:\mathrm{0} \\ $$$$\left({c}\right)\:\mathrm{At}\:{C},\:\mathrm{the}\:\mathrm{velocity}\:\mathrm{and}\:\mathrm{the} \\ $$$$\mathrm{acceleration}\:\mathrm{vanish} \\ $$$$\left({d}\right)\:\mathrm{Average}\:\mathrm{velocity}\:\mathrm{for}\:\mathrm{the}\:\mathrm{motion} \\…