In major league baseball a typical fast pitch travels the 60 ft 6 inches from the pitching mound to home plate at 90 mph. The batter must make a decision to swing to hit the ball or not, and follow the ball to strike it with the bat if choosing toattempt a hit. Calculate the time the batter has to make this decision and compare with the reaction time you determined in the first part. Comment on this challenge.

The energy released by a chemical reaction can be measured using a calorimeter. when barium hydroxide octahydrate crystals are reacted with dry ammonium chloride inside of a coffee cup calorimeter, the temperature of the 18.00 g of water in the calorimeter decreases from 30.0°c to 8.0°c. the equation for calculating energy absorbed or released by a reaction is: where q is the energy released or absorbed, m is the mass of water in the calorimeter, cp is the specific heat of water, and δt is the observed temperature change. if the specific heat of liquid water is 4.19 j/g·°c, how much energy was absorbed by the reaction?

What is the rate of change in a objects position?

Individuals who live below the poverty line get seriously ill more often than those who do not what could be the hidden variable in this situation?