Blog

Magnets are mounted on the sides of the carts facing each other so that the carts repel each other without touching during a collision.  How much energy is lost in this collision?  Enter your unit as “J”.

A Lazy Susan (turning tabletop) has radius 0.750 m.  An apple is placed at the edge of the turning table. A child turns the tabletop from rest to an angular speed of 5.00 rev/min in 3.00 s. What is the value of the angular acceleration in rad/s2?  Enter your unit as “rad/s^2”.

A Lazy Susan (turning tabletop) has radius 0.750 m.  An apple is placed at the edge of the turning table. A child turns the tabletop from rest to an angular speed of 5.00 rev/min in 3.00 s.  Enter you unit as “m/s^2”. What is the value of the apple’s tangential acceleration at 3.00 second in m/s2?

Consider the following mass distribution where the x- and y-coordinates are given in meters: 5.0 kg at ({x1}, 0.0) m, 3.0 kg at (0.0, 5.0) m, 4.0 kg at (0.0, 0.0) m and a fourth object of 8.0 kg at ({x2}, 6.0) m.  Find x coordinate of center of gravity for this configuration.  Enter your unit as “m”.

A 50.0-g uniform meter stick is supported by a fulcrum at the 30.0-cm mark. A 100-g mass is hung at the 50.0-cm mark.  What mass (in g) should you place at the 10.0-cm mark to perfectly balance the stick in horizontal position?  Enter your unit as “g”.

A girl of 50.0-kg skating at 10 m/s crashes into another girl of mass 35.0-kg moving in the same direction at 8.0 m/s.  Assuming the impact lasts 0.15 s, after which they move together, what is the average force that the 50.0-kg girl exerts on the 35.0-kg girl during the crash?  Enter your unit as “N”.

What was the overall impact of Common Sense?

How does Paine address the idea that Britain has protected the colonies?

What biblical argument does Paine use against monarchy?

Which of the following does Paine not list as a reason for American independence?