Mary Rife, of Texas, set a women’s world speed record for sailing. In 1977, her vessel, Proud Mary, reached a speed of 3.17 x 102 km/h. Suppose it takes 8.0 s for the boat to decelerate from 3.17 x 102 km/h to 2.00 x 102 km/h. a) What is the boat’s acceleration? b) What distance would the boat travel during this time?

An initially unpolarized light if intensity 500 w/m^2 passes through four polarizers. the transmission axis between adjacent polarizers is 45∘. what percentage of the initial intensity is transmitted by the system?

Determine the change in width a, height b, thickness t when a plate is subjected to the uniform distributed load and is made of material having modulus of elasticity e=230 gpa and poisson's ratio ν=1/3. given : a=400 mm and b= 300 mm also the uniformly distributed load in downward y direction of plate is 2 mn/m and in the positive x direction is 3 mn/m and t=20 mm

Apair of 10μf capacitors in a high-power laser are charged to 1.7 kv.a. what charge is stored in each capacitor? b. how much energy is stored in each capacitor?