3. Masses are hung on a light string attached to an ideal massless pulley as shown in the diagram. The total mass hanging from the
left string is equal to that on the right. At time t = 0, the 0.2kg
mass is moved from the left to the right side of the pulley.
a. How far does each mass move in one second? (1m 1sf)
b. Calculate the tension in the string after t = 0. (9N)

What is magnetic flux? explain faraday's law of induction.

Astudent is given an assignment to demonstrate diffraction. he takes a photograph of a straw in a glass of water. the straw appears bent at the water level. which best describes this example? a) this is a good example of diffraction. b) this is an example of dispersion and not diffraction. c) this is an example of refraction and not diffraction. d) this is an example of reflection and not diffraction.

Gasoline comes from petroleum, which is made from ancient living things. petroleum, therefore, contains a type of energy. a. heat b. nuclear c. biological d. chemical potential