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Question: An object of mass 2kg, initially at rest, is dropped from a tower in order to determine its height. The object's velocity is 0.02 μm ns-1 just before it hits the ground.
a. Find the object's velocity in m s-1.
b. What is its kinetic energy just before impact?
c. What is the height of the tower?
We use a converging lens as the objective (focal length fo λ 25 cm) and a diverging lens as the eyepiece (focal length fe λ 5cm) to construct a simple Galilean telescope. What should be the distance between the lenses?
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A speedboat moves on a lake with initial velocity vector v1,x = 9.27 m/s and v1,y = -2.17 m/s, find the components of the speedboat\'s final velocity
Consider a horizontal square plate capacitor of area 1.8*1.8 m2, capacitance in vacuum 1 F, which contains a dielectric material with dielectric constant K=6. The dielectric slides frictionlessly and is attached via a massless string and a massles..
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