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Preliminary Questions
1. Give the relationship between a wave's velocity, frequency, and wavelength. Show that this equation is dimensionally correct. Note that a graph of lambda vs. L/f should be a straight line. What are its slope and y-intercept?
2. Sketch the waves (using the method outlined in the Physical Principles section) corresponding to the lowest three frequencities of vibration of the 30 cm air column shown below. What is the wavelength of the standing wave in each case? If the speed of sound in air is 331 m/s, what frequency is heard from each pipe?
Estimate how much power is saved if the voltage is stepped up from 240 V to 1200 V and then down again, rather than simply transmitting at 240 V
earths atmosphere is constantly bombarded by cosmic ray protons that originate somewhere in space. if the protons all
Consider a circuit with two resistors in parallel; R1=10 Ohm and R2=5 Ohm, Calculate the total current flowing through the battery
What is the energy of 3.0mol of photons that have a wavelength of 2.0 µm
Consider three capacitors having capacitances of 5.51, Find their equivalent capacitance if they are connected for both: in parallel and in series
A large air conditioner has a resistance of 9.0 ohms and an inductive reactance of 13 ohms. Find the average power consumed by the air conditioner
The two plates of a capacitor hold +2350 µC and -2350 µC of charge, correspondingly, when the potential dissimilarity is 910 V. What is the capacitance? Answer in µF
Two plastic spheres, each carrying charge uniformly distributed throughout its interior, are initially placed in contact and then released. Find the maximum speed achieved by the sphere of mass 53.0g
a 250 g block is attached to a horizontal spring and executes simple harmonic motion with a period of 0.250 s. if the
A rod supports a 2.35 kg lamp. a) What is the tension in the rod? b) Estimate the components of the force that the bracket exerts on the rod.
A 5-kg fish swallows an absentminded 1-kg fish swimming towards it at a velocity that brings both fish to a halt immediately after lunch. What is the velocity of the smaller fish before it becomes lunch?
A 28 g bullet pierces a sand bag 30 cm thick. What is the magnitude of the friction force (assuming it to be constant) the bullet experienced while it traveled through the bag
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