Physics
Learning Goal: To understand the standard formula for a sinusoidal traveling wave One formula for a wave with a y displacement (e.g., of a string) traveling in the x direction is y(x, t) A sin(kx-wt) All the questions in this problem refer to this formula and to the wave it describes. Part A Which of the following are independent variables? O r only O t only O A only O k only w only O and t O w and t O A and k and w Submit Request Answer Part B Which of the following are parameters that determine the characteristics of the wave? only O t only O A only O k only w only and t and t O A and k and w Submit Request Answer PartD What is the wavelength of the wave? Express the wavelength in terms of one or more given variables (A, k, r, t, and w) and any needed constants like . Azo Part E What is the period 1' of this wave? Express the period in terms of one or more given variables (A, k, x, t, and w) and any needed constants like TT A2p Part F What is the speed of propagation of this wave? Express the speed of propagation in terms of one or more given variables (A, k, r, t, and w) and any needed constants like T. A2o
The chemical formula for carbonic acid, a compound used in carbonated drinks, is H2CO3. Assume that these symbols represent the three elements of this compound:Three atoms, grey represents carbon, red represents oxygen and white represents hydrogenWhich picture correctly represents carbonic acid? A. Molecule structure has five atoms connected in a straight line using single bond in order of white atom, red atom, grey atom, red atom and white atom. The grey atom in center is connected to a red atom in double bond B. Molecule structure has five atoms connected in a straight line using single bond in order of Red atom, white atom, grey atom, white atom and red atom. The grey atom is connected to a white atom in double bond C. Molecule structure has five atoms connected in a straight line using single bond in order of Red atom, white atom, grey atom, white atom and red atom. The grey atom is connected to a white atom in double bond D. Molecule structure has five atoms connected in a straight line using single bond in order of Red atom, grey atom, white atom, grey atom and red atom. The white atom in center is connected to grey atom in double bond