Question 8 The figure below shows a ripple tank which is used to study the behavior of water waves. Water waves
are produced in the tank. The shadow of the waves is projected onto the screen below the tank. A clear
view of the screen is also shown to the right of the ripple tank. What is the approximate wavelength of
the waves as seen on the screen?
metre ruler
SCREEN
lamp
dipper dips in and out of the
water producing ripples
to signal generator
o cm
water
screen
90 cm
shadows cast by ripples
metre ruler
A. 10 cm
B. 11 cm
C. 98 cm
D. 720 cm
Justify your

1. consider the case in which air fills air shocks on a truck trailer. the pressure in the shocks is 2 mpa. the temperature is 300 k. the diameter of the shock piston is 10 cm and the initial length of the cylindrical cavity containing the compressed air is 40 cm. a. the truck is gradually loaded over a period of a day in a static setting. the temperature is held constant for the atmosphere and thus for the gas shock. calculate the compressibility of the air in the shock for this condition when the truck is initially being loaded. b. if the shocks were loaded in a dynamic setting by driving over bumps, what would be the compressibility? state your assumption. c. what is the initial load on the shock if the shock is in an atmospheric 100 kpa? d. if the shock is compressed using the process described in part a, and the air shock compressed air cavity length decreases to 20 cm, what is the additional load applied to the shock?

Any color picture tube and electric field exerts a net force of magnitude 1.68x 10^-13 n on an electron the rest mass of an electron is 9.11 x 10^-13 what is the electron acceleration?

We have a colorless transparent liquid. it looks like water. we seperated it into a solid and a liquid by evaporration and condention was this a chemichal or a physical seperation a. chemical seperation b. physical seperation