Example 11-9 depicts the following scenario. a cat walks along a plank with mass m= 7.00 kg. the plank is supported by two sawhorses. the center of mass of the plank is a distance d1= 0.850 m to the left of sawhorse b.
when the cat is a distance d2= 1.11 m to the right of sawhorse b, the plank just begins to tip?

In positive numbers less than 1, the zeros between the decimal point and non zero are significant

Which configuration would produce an electric current? a) rotate a coil of copper wire between two magnets. b) connect a wire between a copper and zinc strip sitting in a beaker of water. c) connect a wire to the (+) positive end of a battery and the other end to a light bulb. d) connect a wire to the negative end of a battery and the other end to a light bulb.

The volume of a gas is halved during an adiabatic compression that increases the pressure by a factor of 2.5. what is the specific heat ratio? show the math steps .