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A person enter a tower, needing to know its height. He notes that a long pendulum extends from the ceiling almost to the floor and that its period is 17.0 second.
(a) Find how tall is the tower?
(b) If this pendulum is taken to the Moon, where the free-fall acceleration is 1.67 m/s2, determine what is the period there? s
Find the recoil speed of the rifle. A 650-N force acts in a northwesterly direction. A second 650-N force must be exerted in what direction so that the reultant of the two forces points westward? Illustrate your answer with a vector diagram.
Consider a quantum particle with potential energy V(x) which has a minimum and show that the energy eigenvalue E must exceed the minimum value of V(x) for every normalizable solution of the Schrodinger equation.
a unit cell of diamond is a cube of side a with carbon atoms at each corner at the center of each face and in addition
Compare the magnitudes of the gravitational force of attraction and the electric force of attraction between the electron, Find the ratio of the electric force to the gravitational force
A boy and girl are balanced on a massless seesaw. The boy has amass of 75kg and the girl has a mass of 50kg. If the boy sits 2metres from the pivot on one side of the seesaw where must the girlsit on the oppsite side.
As you sit facing your computer screen, electrons are directed from a source at the back of the computer toward you and are deflected by a magnetic field. Which direction must the magnetic field be oriented in order to direct the electrons to the ..
A cylindrical brass sleeve is to be shrink-fitted over a brass shaft whose diameter is 3.219 cm at 0°C. To what temperature must the sleeve be heated before it will slip over the shaft
A fisherman is fishing from a bridge and is using a "30.0-N test line." In other words, the line will sustain a maximum force of 30.0 N without breaking. What is the weight of the heaviest fish that can be pulled up vertically.
Soles of boots that are designed to protect workers from electric shock are rated to pass a maximum rms current of 1.5mA, What is the minimum allowed resistance of the sole
question an airplane is flying at a speed 350 mihf at an altitude of one mile and passes directly over a radar station
Suppose the temperature of 4.56 L of ideal gas drops from 359 K to 275 K. Find the number of moles of gas
An oscillating LC circuit has a current amplitude of 8.00 mA, a potential amplitude of 250 mV, and a capacitance of 215 nF. What is the maximum energy stored in the capacitor
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