Adog may become frightened and cower when it hears loud thunder. this is an example of a reaction to what kind of stimuli?

chemicals

light

touch

sound

Initially, the balloon had 3.0 liters of gas at a pressure of 400 kpa and was at a temperature of 294 k. if the balloon is cooled to 277 k and its volume decreased to 1 l, what will the new pressure in the balloon be?

Margaret wants to make an orange flavored drink by stirring powdered drink mix into a glass of water. she doesn't like drinks that have small clumps of powdered solid in them, so she wants the drink to be a perfect solution. what factors should margaret not consider when deciding how much powder to add to her glass of water?

The mass of a neutron is equal to the mass of a proton plus the mass of an electron. true or false false true