Blog

A string with a mass/length ratio of 0.0020 kg/m has a speaking length of 0.80 m and a tension of 220 N. What’s the fundamental wave length? What’s the fundamental frequency? What speaking length would be required to double the fundamental frequency?

Find the equation of the tangent line to the curve at the point (0,2). Solve for y.

A ball is dropped from a height of 220 feet above the ground. The height s (measured in feet) at time t is given by . Find the velocity of the ball in ft/s on impact with the ground if it takes 5 seconds to reach the ground.

Using the alternative limit definition, determine whether or not the function is differentiable at c =2: Formula:

Use the chain rule to find the derivative of the function

A wooden artifact is found to have a carbon-14 activity of 8.2 disintegrations per second.  Given that the carbon-14 activity of an equal mass of freshly cut wood is 15.2 disintegrations per second, determine the age of the artifact in years.  The half-life of carbon-14 is 5717 years.

Using the provided standard reduction potentials, calculate the standard emf, E°cell (in V to two decimal places), of an electro-chemical cells utilizing the following reactions:   2 I-(aq) + Zn2+(aq)

As the size of the atomic nucleus increases, which statement is true concerning the ratio between the number of neutrons and protons  in the nucleus? 

A wooden artifact is found to have a carbon-14 activity of 10.2 disintegrations per second.  Given that the carbon-14 activity of an equal mass of freshly cut wood is 15.2 disintegrations per second, determine the age of the artifact in years.  The half-life of carbon-14 is 5717 years.

A Voltaic (or Galvanic) cell utilizes a [drop1] chemical reaction to produce an electrical current.