1. A bottle rocket of 5 kg is set skyward and launched so that it has an acceleration of 10.5 m/s / s upwards from rest for 1.0 s before rising upwards as a projectile without any upward thrust . The upward direction has been declared positive. Determine the vertical net force acting on the rocket.

The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island

Carbon is allowed to diffuse through a steel plate 15 mm thick. the concentrations of carbon at the two faces are 0.65 and 0.30 kg c/m^3 fe, which are maintained constant. if the preexponential and activation energy are 6.2 x 10-7 m2 /s and 80,000 j/mol, respectively, compute the temperature at which the diffusion flux is 1.43 x 10^-9 kg/m^2 -s.

The charge on an electron is 1.60218 × 10−19 c and its mass is 9.10939 × 10−31 kg. how strong a magnetic field must be experienced by the electron if its path is a circle of radius 5.5 cm? answer in units of t.