When drawing a free body diagram, which direction would you draw the arrow representing the normal force for an object on a level floor

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?

The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane

Determine el momento angular de un rueda de 3000g moviendose a 10m/s con un radio de giro de 400cm