An experimental analysis of the natural oscillations in a particular structure shows the dominant frequencies of interest appear at below 200Hz200Hz. However, frequency information also exists at 350,450350,450, and 750Hz750Hz. If the signal is sampled at 400Hz400Hz, how will the information in the aliased frequencies appear in the sampled data

Sara is creating an experiment. her hypothesis states the following. if i increase the air in my tires, then i will get better gas mileage. if this is her hypothesis what column titles do we need in our date table? a. air pressure in tire (psi) and gas mileage (mph) b. air pressure in the atmosphere (psi) and gas mileage (mph) c. miles (m) and gallons per mile (g) d. old battery and new battery

Suppose a comet has an orbital period of 309.1 years around the sun. what is it’s average distance from the sun?

Specific heat refers to the amount of heat required to change 1 gram of a substance by degree(s) celsius