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Question 1 A spring has a spring constant of k = 7.500N/m. If the spring is displaced 0.5500 from its equilibrium position, what is the force that the spring exerts?
Question 2 A spring of spring constant k = 8.250 N/m is displaced from equilibrium by a distance of 0.1500 m. What is the stored energy in the form of spring potential energy?
Question 3 What was the work done in stretching the spring in questions 2 from its eqilibrium position to a displacement of 0.1500m?
A sample of wood from an archaeological excavation is dated by using a mass spectrometer to measure the fraction of 14C atoms. What is the wood's age
Consider the mass spectrometer shown schematically in the figure below. The electric field between the plates of the velocity selector is 5900 V/m, Calculate the radius r of the path for a singly charged ion
A coil of cross-sectional area .004m^2 consisits of 100 turns and has a resistnace of 4.5ohms. determine The maximum magnetic torque on the coil
700 g of an unknown metal powder at Thot = 78°C are dropped into a negligible heat capacity calorimeter containing 140 g of water at 11°C, Calculate the specific heat of the metal powder
The electron beam inside a television picture tube is 0.4 mm in diameter and carries a current of 55 µA. What is the power delivered to the screen by the electron beam
A 1.8 micro F capacitor is discharged, starting at t=0s. The displacement current through the plates is Idisp = (13A)exp(-t/2.5micro s)
The incident electron loses energy The incident electron emits an x-ray.
0.0029 J of energy are stored in a parallel-plate capacitor whose plates each have area 0.30 m2 and are 1.5 mm apart
A student at another university repeats the experiment you did in lab. Her target ball is 0.860 m above the floor when it is in the target holder, What is the kinetic energy (in joules) of the target ball just after it is struck
Find out the magnetic field strength
At a certain time a model car's speed was 24 m/s in the positive x direction, What was the average acceleration of the car during this 8.0 s interval
A charge of -2.6 × 10-9 C is at the origin and a charge of 8.1 × 10-9 C is on x-axis at x = 3 m. At what two locations on the x-axis (xpositive, xnegative) is the potential zero.
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