What are examples of perfectly inelastic collisions?

a- baseball bouncing off the back

b-bumper cars bumping off of each other

c-cue ball hitting an eight ball and then stopping

d-plane landing on an aircraft carrier

e-rain sticking to a window

f-two train cars coupling together

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?

Which is an example of an exothermic process?

Which system of units is used by only a small number of countries in the world, including the u.s.