5. We use meteorites to help tell us about the compostition of the interior of the earth. What type of meteorite has very similar characteristics, density, etc. to the mantle?
a. Stony
c. Asthenosphere
b. Mesosphere
I
d. Metallic

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?

If a refrigerator is a heat pump that follows the first law of thermodynamics, how much heat was removed from food inside of the refrigerator if it released 380j of energy to the room?

The free body diagram shows a box being pulled to the left up a 25-degree incline. the magnitude of the normal force is