Blog

A 100kg mass is placed in water.  How much of it’s volume is submerged when it stops sinking?

Resistor 1 has larger resistance than Resistor 2. They are connected to identical batteries (same voltage). Which one consumes more power?

Pressure and volume, one one side, and the number of particles and temperature, on the other side, of a hot gas, are equivalent because:

For a gas at finite pressure, the processes which increase the internal energy of a gas are:

A mass attached to a horizontal spring is displaced from it’s equilibrium position value by 0.1 m, and then released. It then oscillates back and forth about it’s equilibrium position (i.e. it vibrates). While vibrating, the mass undergoes 20 complete oscillations over 5 seconds.  What is the frequency of oscillation in SI units?

A metal sphere initially holds no charge.  A glass wand has +2 C on it’s tip, and it is brought into proximity of the metal sphere.  The metal sphere has no electrical contact or connection with the wand or anything else through the process.  Which best describes what will happen to the sphere?

With a force F acting on a mass, acting over time interval t, and over a displacement magnitude d in the direction of the force, the change in an object’s momentum is:

A cyclist is riding on a country road, down a huge hill into the holler. Which is true of the cyclist’s potential energy?

If an airplane manufacturer doubles the area of each window in a model, which describes the effect of the force on a window from air pressure?

A 5kg and a 10kg are free-falling near the Earth’s surface, with the Earth’s gravitational force the only force acting.  Which is true?