alok

If a rod of 1025 steel 0.5 m (19.7 in) long is heated from 20 to 80 deg C (68 to 176 deg F) while its ends are maintained rigid, determine the type and magnitude of stress that develops. Assume that at 20 deg C the rod is stress free.

H3PO4 is a tribasic acid and one of its salt is NaH2PO4.what volume of 1M NaOH solution should be added to 12g of NaH2PO4 to convert it into Na3PO4?

A man drove his car northward,then turned left and drove 10 km and again turned left and drove 20 km.He found himself 10 km west of his starting point.How far did he drive northward initially.

a ball is dropped from height h after one second another ball dropped freely from point 20 m below where first ball dropped both of them reach the grount at the same time calculate the value of h

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