1. a measure of how long the wave is, taken from one wave to the same point on the next wave 2. the human perception of intensity.

3. a term related to frequency that increases as frequency increases.

4. A measure of the energy passing through an area in a set amount of time.

5. The number of waves per second

6. The matter a wave moves through.

7. The height of a crest, the depth of a trough, the density of a compression and/or the sparseness of a rarefaction.

a. Loudness b. Intensity c. Medium d. Amplitude e. Pitch f. Frequency g. Wavelength

Ablock of mass m = 2.5 kg is attached to a spring with spring constant k = 710 n/m. it is initially at rest on an inclined plane that is at an angle of θ = 23° with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is μk = 0.19. in the initial position, where the spring is compressed by a distance of d = 0.16 m, the mass is at its lowest position and the spring is compressed the maximum amount. take the initial gravitational energy of the block as zero. a) what is the block's initial mechanical energy? b) if the spring pushes the block up the incline, what distance, l, in meters will the block travel before coming to rest? the spring remains attached to both the block and the fixed wall throughout its motion.

Urgent pls a. coal consumption levels off and remains flat. b. petroleum, natural gas, and renewables show an increase in consumption c. more nonrenewable resources continued to be consumed than renewable. d. there is little projected increase in nuclear energy use. e. carbon dioxide emissions are projected to decline as we approach 2040. global energy consumption is defined as the total energy used by an individual or organizations from around the world. use the graph above to analyze the projected energy consumption from now until 2040. which statements in the prompt apply? a) a, b, d b) b, c, d c) a, c, d d) a, b, c, d

If you put a helium-filled balloon in the refrigerator, what will happen?