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Two rods are made of the same kind of steel. The longer rod…

Two rods are made of the same kind of steel. The longer rod has a greater diameter. A force of magnitude F is applied to each end of each rod. Compared to the rod of length L, the rod of length 2L has:

Published July 25, 2021
Categorized as Uncategorized

When recording data in the lab, which of the following shoul…

When recording data in the lab, which of the following should you NOT do?

Published July 25, 2021
Categorized as Uncategorized

A yo-yo is placed on a horizontal surface as shown. There is…

A yo-yo is placed on a horizontal surface as shown. There is sufficient friction for the yo-yo to roll without slipping. If the string is pulled straight up as shown with a force of constant magnitude F:

Published July 25, 2021
Categorized as Uncategorized

Three force vectors are shown in the figure. All three force…

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.

Published July 25, 2021
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You want to double the radius of a rotating solid sphere whi…

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:

Published July 25, 2021
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The graph shows the angular velocity omega (z) and angular a…

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?  

Published July 25, 2021
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An incompressible fluid with zero viscosity flows through a…

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:

Published July 25, 2021
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If you titrate 25.00mL of NaOH (unknown concentration) with…

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

Published July 25, 2021
Categorized as Uncategorized

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

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

Published July 25, 2021
Categorized as Uncategorized

What is the precipitate in the following reaction?  AgNO3(aq…

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

Published July 25, 2021
Categorized as Uncategorized

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