Please help!! :( will mark as brainliest The price of tickets to the Dakota vs. Chippewa football game goes from $6 to $4, which results in a 50% change in demand for tickets. What is the elasticity? What type of product is it?

Name three different units of energy used to measure heat and describe what type of situations each is usually used.

Gordon is going for a run through the park, but it is cold outside. the low outside temperature could affect his personal safety.

Light from a sodium lamp passes through a diffraction grating that has 1000 slits per millimeter. the interference pattern is viewed on a screen 1.000 m behind the grating. the first (m = 1) two bright yellow fringes that are visible are 0.7288 m and 0.7300 m from the central maximum. what are the wavelengths of these two fringes?