1] two different colors of light (color 1 and color 2) are known to have the same speed when traveling in medium a. when they pass from medium a into medium b, they display the behavior shown below: both colors medium a color 1 medium b color 2 a (a) based upon this behavior, rank the following from fastest to slowest: (i) (ii) (iii) speed of both colors in medium a speed of color 1 in medium b speed of color 2 in medium b (b) is medium b dispersive with respect to light waves? explain your answer. 2] a transverse wave is traveling along a string. suppose that the mass density of the string becomes larger in one section of the string. as the wave enters this section of the string: (a) describe what happens to the speed of the wave. (b) describe what happens to the frequency of the wave. (c) describe what happens to the wavelength of the wave. (d) describe what happens to the period of the wave.

Zeros that follow non-zeros numbers and are also to the right of a decimal point are significant

Aplane flies a distance d from west to east at a constant speed vp , with respect to the air in a time twe . on the return trip, the plane flies a distance d from east to west at a constant speed vp , with respect to the air in a time tew . on both trips the wind blows from west to east at a constant speed va , with respect to the ground 1) what is tew in terms of vp, va, and d, as needed? tew=dvp tew=dvp+va tew=dva tew=dvpâ’va tew=12dvp tew=12dvp+va tew=12dvpâ’va your submissions: b submitted: saturday, january 26 at 6: 49 pm feedback: feedback will be given once all questions have been attempted and the grade cluster button has been pressed. 2) what is twe in terms of vp, va, and d, as needed? twe=dvp twe=dvp+va twe=dva twe=dvpâ’va twe=12dvp twe=12dvp+va twe=12dvpâ’va your submissions: d submitted: saturday, january 26 at 6: 49 pm feedback: feedback will be given once all questions have been attempted and the grade cluster button has been pressed. 3) assuming d = 2300 miles, vp = 400 miles/hr, and twe = 4 hours, what is va, the speed of the wind with respect to the ground? va = 100 miles/hr va = 575 miles/hr va = 200 miles/hr va = 175 miles/hr va = 975 miles/hr 4) once again, assuming d = 2300 miles, vp = 400 miles/hr, and twe = 4 hours, what is tew, the time it takes the plane to fly a distance d miles from east to west? tew = 5.75 hours tew = 11.5 hours tew = 7.67 hours tew = 8 hours tew = 10.2 hours

Find the dimensions and area of the largest rectangle that can be inscribed in the upper half of the ellipse. (give your answers in terms of a and b. enter the dimensions as a comma-separated list.)