A student that is running in a gym at a speed of 3.5m/s grabs the rope hanging from the ceiling and swings on it. a. how high will he swing? [63cm]
. How high will he be when his speed reduced to half of its initial value? [16cm, ¼ of the initial
value]

What type of nuclear decay causes the atomic number of an element to increase by 1?

If a tank filled with water contains a block and the height of the water above point a within the block is 0.8 meter, what is the pressure at point a?

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.