A bullet of mass 50g moving with an initial velocity 100m/s strikes a wooden block and comes to rest after penetrating a distance 2 cm in it. calculate. a) initial momentum of the bullet.
b). Final momentum of the bullet.
c). Retradation caused by the wooden block.
d). Resistive force exerted by the wooden block.
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Six solutions are made, each with a y concentration of 1.0 μm and varying concentrations of ab as shown below. based on the concentrations, rank the solutions in decreasing order of reaction rate.

Which of the following changes to a pipe would increase the conductance by a factor of 12? 1.quadrupling the length and tripling the radius.2.reducing the length by a factor of and doubling the radius.3.tripling the length and reducing the radius by a factor of .4.reducing the length but a factor of and doubling the radius.

To travel at constant speed, a car engine provides 24kw of useful power. the driving force on the car is 600n. at what speed does it travel?