Blog

Three force vectors are shown in the figure. All three forces act at point P. Rank the three forces in order of the magnitude of the torque that they produce about point O, a distance r = 0.500 m from point P. Rank them from largest torque to smallest torque.

You want to double the radius of a rotating solid sphere while keeping its kinetic energy constant. (The mass does not change.) To do this, the final angular velocity of the sphere must be:

The graph shows the angular velocity omega (z) and angular acceleration alpha (z) versus time t for a rotating body. At which of the following times is the rotation speeding up at the greatest rate?  

An incompressible fluid with zero viscosity flows through a pipe of varying radius (shown in cross-section). Compared to the fluid at point P, the fluid at point Q has:

If you titrate 25.00mL of NaOH (unknown concentration) with 35.74mL of 1.00M HCl, what is the molarity of the NaOH?

(2 points) What is the name of the lab glassware shown below?

What is the precipitate in the following reaction?  AgNO3(aq) + NaCl(aq) –> ?

____________ are considered categorical data, while ____________ are considered continuous data.

In ____________ , codebooks are developed iteratively. One method of doing this is to look at your first piece of data, and to use this data to create a code. You then look at your next piece of data and compare it to that first code. If it fits, you use the code again. If it doesn’t, you create a new code. You then look at the next piece of data, and see if it fits with either of the first two codes, or if it needs a new code. You do this iteratively until you have analyzed all of your data.

Which of the following is NOT a disadvantage of online, self-administered surveys?