What role does speed play in team sports like football, hockey, and soccer? a) It increases a team member’s ability to maintain momentum throughout a game.
b) It helps the team share their abilities more evenly throughout the game.
c) It helps a team member reach the ball or goal before other players.
d) It allows a team’s players to throw the ball harder than the other team’s players.

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?

Which of these metals are magnetic?