Examples of newton's laws in soccer

Provide two examples of each of newton's laws in soccer ? (Post grad course)

Optics: Apparent depth due to refractive index change.

A beaker contains water up to height of H1 and K-oil above water up to another height H2. Find the apparent shift in the position of the bottom of the beaker when viewed from above. Refractive index of water is n1 and that of kerosene is n2.

Optics: Application of the lens formula.

A slide projector produces a 500 times enlarged image of a slide on a screen 10m away. If the screen is moved 2m closer, by what distance should the slide be moved towards or away from the lens so that the image remains focused on the screen? What is the magnification in this case? Assume that the projector consists of a single convex lens for magnification.

Helium and sound waves: Why your voice goes higher with helium.

Helium has an interesting effect on the voice, giving it a high-pitched quality, like donald duck. Assume that the voice is generated by the vocal cord vibrating above a gas filled tube open at one end. Explain why helium raises the frequency of the harmonics that characterise the voice.

Physics I, problems

Use factor labeling 1) A sphere has a radius 1.500m Find its volume in cm^3. Find its suface area in m^2 and in mm^2? 2) A truncated right circular cone has dimensions: upper base diameter =1.50cm lower base diameter = 4.00cm height = 6.00cm Find its volume in cm^3, m^3, mm^3 Velocity-acceleration 3) a person walks 5km in 1,5hr. What is the speed in mi/hr, m/s, and ft/s? 4) A car can accelerate from rest to 60 mi/hr in 7 s. Express this acceleration in the following units(assume constant acceleration) ft/s^2 km/hr/s m/s^2 5)A turntable accelerates from rest to 33 rpm in 0.6s. Express this acceleration in rev/s^2 and rad/s^2. 6)A spbway train starts ... click for more