1. State the physical quantities one has to measure in other to determine the young modulus of a wire. 2. if a spring with a stifness of 950mn-¹ is extended to 60mm, calculate the work done in extending the spring.

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f is prop to m1xm2 double m1 double force

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).

the only real purpose of sputnik 1 was to beat the us into space. we were getting close to launching a useful satellite, explorer 1 - which launched on january 31, 1958. the ussr had to beat that, so they launched sputnik 1 on october 4, 19