Question 7 (1 point) [02.04)
An observer notes that the pitch of a sound is becoming progressively lower. The observer can conclude that the sound is moving (1 point)
a
away and the frequency of the sound wave is increasing
Ob
away and the frequency of the sound wave is decreasing
closer and the frequency of the sound wave is decreasing
Oc
Od
closer and the frequency of the sound wave is increasing

Afixed electric space heater wired by a cable with an ampacity of 30 a should draw a maximum current of a. 30 a. b. 24 a. c. 15 a. d. 27 a.

When temperature of a substance increases, of its particles increase resulting in more between particles. real world applications of thermal expansion absolute zero (-273 degrees c) is the lowest possible temperature on the kelvin scale. it is a measure of where a substance has no kinetic energy. heat is a process of the . energy flows spontaneously from a object to a until equilibrium is reached. heat is measured in heat is transferred throughis a method of heat transfer that occurs between particles of matter that are in direct contact with each other. are poor conductors that impede / reduce the rate of heat transfer. is a method of heat transfer that occurs in fluids (non-solids) by means of currents. real world application of convectiona method of heat transfer through electromagnetic waves. when energy moves from one object to another inside a closed system, no energy is or in the system in the transaction. systems will spontaneously move to a state of organized energy or high disorder over time called

Identify some abiotic characteristics of the tundra biome.