What is the momentum of a 15 kg tire rolling down a hill at 3 m/s? 5 kg • m/s
18 kg • m/s
45 kg • m/s
60 kg • m/s

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?

When a light bulb shines, it gives off light energy and energy. a. heat b. potential c. chemical d. electrical

Smallest intensity of a stimulus that you can detect 50 percent of the time is