Experimentally, it has been observed for single crystals of a number of metals that the critical resolved shear stress, τcrss, is a function of the dislocation density, rhoD, as where τ0 and A are constants. For some metal, the critical resolved shear stress is 3.14 MPa at a dislocation density of 1.60 × 104 mm-2. If it is known that the value of A for this metal is 1.52 × 10-3 MPa-mm, compute the τcrss (in MPa) at a dislocation density of 2.85 x 106 mm-2.

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

the speed of the cart after 3 seconds of low fan speed is ⇒ 54.0 cm/s.

the speed of the cart after 5 seconds of medium fan speed is ⇒ 120.0 cm/s.

the speed of the cart after 2 seconds of high fan speed is ⇒ 64.0 cm/s. 

just did the lab.