Not too long ago houses were protected from excessive currents by fuses rather than circuit breakers. sometimes a fuse blew out and a replacement wasn't at hand. because a copper penny happens to have almost the same diameter as a fuse, some people replaced the fuse with a penny. unfortunately, a penny never blows out, no matter how large the current, and the use of pennies in fu se boxes caused many house fires. make the appropriate measurements on a penn y, then calcul ate the resistance between the two faces of a solid-copper penny. (modern pennies have the same dimensions, but are made of zinc with a copper coating.)

When someone slams her books on a table the kinect energy is transferred into vibrations that travel to your ears as sound waves which statement describes the movement of those waves

Imagine you work as a consultant, and your daily job involves listening to the constructive criticism of others. as part of your job, you must listen to opposing viewpoints to make important decisions. in this activity, you are a consulting dam engineer. you must make a decision about four different dams; should they be repaired, taken down, or left alone? you will listen to contrasting opinions about what should be done with the dams before you make the final decision. as the consulting dam engineer, what do you decide to do with this dam? explain your reasoning. by making your decision, did you support the opinions of the mayor and/or the dam safety official? why or why not? (site 1)

The rocket is fired vertically and tracked by the radar station shown. when θ reaches 66°, other corresponding measurements give the values r = 32700 ft, r¨ = 85 ft/sec2, and θ˙ = 0.019 rad/sec. calculate the magnitudes of the velocity and acceleration of the rocket at this position.