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Study the free body diagram above. Which scenario below can best be described with this free body diagram?
A)
A cup is at rest on a table.
B)
A car coasts down a hill
A child drops a penny from the top of a building. Neglect air resistance.
D)
A bartender slides a glass of beer to a patron at the end of a bar. Neglect
air resistance.

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?

Herbivores, carnivores, and omnivores are all types a. decomposers b. producers c. consumers d. biomes

Ameter stick is pivoted at the 0.50-m line. a 3.0-kg object is hung from the 0.15-m line. where should a 5.0-kg object be hung to achieve equilibrium (the meter stick oriented horizontal and motionless)?