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A battleship is using sonar (reflected underwater sound signals) to detect the presence of nearby submarines. How far away from the battleship is the submarine
A solid lead sphere of volume 0.40m^3, dropped in the ocean, sinks to a depth of2.0*10^3 (about 1 mile), What is the change in volume of the sphere
A lamp (R = 146 omegacap.gif), an electric heater (R = 25 omegacap.gif), and a fan (R = 51 omegacap.gif) are connected in parallel across a 115 V line. What power is expended in the heater
An uncharged capacitor and a resistor are connected in series to a source of emf. If e m f = 9.00 V, C = 15.0 µF, and R = 100 ?, find the charge on the capacitor after one time constant
Multiple-Concept Example 13 presents useful background for this problem. determine the average power developed by the cheetah
The planet Neptune has a satellite, Proteus, which travels in an orbit 1.180*10^8 m with a period of 1.12 days. Calculate the mass of Neptune
A plank 2.00 cm thick and 12.9 cm wide is firmly attached to the railing of a ship by clamps so that the rest of the board extends 2.00 m horizontally over the sea below. find the shear modulus of t
Two free point charges +q and +4q are a distance l apart. Find the location, magnitude, and sign of the third charge
A rope of length L = 5.2 m with a total mass of m = 0.205 kg is tied to a hook rigidly mounted into a wall. What is the height of the pulse that returns
A certain alarm clock ticks four times each second, with each tick representing half a period. What is the torsion constant of the hairspring
The current in a 100 watt lightbulb is 0.770A . The filament inside the bulb is 0.300mm in diameter. What is the electron current in the filament
The current in a coil changes from 3.10 A to 1.90 A in the same direction in 0.530 s. what is the inductance of the coil
In February 2004, scientists at Purdue University used a highly sensitive technique to measure the mass of a vaccinia virus (the kind used in smallpox vaccine). What is the mass of the virus in femt
In a Compton scattering experiment, the scattered electron is observed to move in the same direction, what is the scattering angle of the photon
An X-ray photon with a wavelength of 0.260nm scatters from a free electron at rest. Find the initial momentum of the photon
A spherical object has an outside diameter of 50.0cm. Its outer shell is composed of aluminum and is 0.800cm thick. Determine the object's average density
Describe what the Zeroth Law of Thermodynamics is in your own words. Also, draw a scenario that verifies the Law is accurate. State the other Laws of Thermodynamics
Red light of wavelength 670.0 nm produces photoelectrons from a certain photoemissive material. What is the material's work function
Photons of wavelength 490 nm are incident on a metal. What is the work function of the metal
A hydrogen atom is in its ground state when its electron absorbs a 48 keV photon. What's the energy of the resulting free electron
What is the percentage difference between the speeds of red light and violet light in diamond, What is this percentage difference in flint glass
A 0.200H inductor is connected in series with a 85.0? resistor and an ac source. Derive an expression for the voltage vR across the resistor
Light of wavelength 500 nm illuminates a round 0.50-mm-diameter hole. find the width of the central bright circle on the screen
Diane (weight 255 N) is practicing on a tightrope that is 6.00 meters long and sags by 0.120 meters. find the force on each eyebolt holding the tightrope
One charged particle of -1.3 × 10-6 C is moving north with a velocity of 5 × 106 m/s. What force is exerted between the particles