"for a first order instrument with a sensitivity of .4 mv/k and a time" constant of 25 ms, find the instrument’s response as a function of time for a sudden temperature increase from 273 k to 473 k. before the temperature increase, the instrument output was a steady 109.2 mv. plot the response y(t) as a function of time. what are the units for y(t)? find the 90% rise time for y(t90) and the error fraction, γ(t90).

Light from a sodium lamp passes through a diffraction grating that has 1000 slits per millimeter. the interference pattern is viewed on a screen 1.000 m behind the grating. the first (m = 1) two bright yellow fringes that are visible are 0.7288 m and 0.7300 m from the central maximum. what are the wavelengths of these two fringes?

The dipole moment of the water molecule (h2o) is 6.17x10^-30 c.m. consider a water molecule located at the origin whose dipole moment p points in the +x-direction. a chlorine ion ( of charge-1.60x10^-19c , is located at x=3.00x10^-9m . assume that is much larger than the separation d between the charges in the dipole, so that the approximate expression for the electric field along the dipole axis can be used. a) find the magnitude of the electric force that the water molecule exerts on the chlorine ion. b) what is the direction of the electric force. -x-direction or +x-direction c) is this force attractive or repulsive?

Another word for electromagnetic energy is a. heat b. force c. matter d. radiation