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Although the evidence is weak, there has been concern in recent years over possible health effects from the magnetic fields generated by transmission lines. Estimate the magnetic field strength on t
Describe, in general terms, how we may be able, through some simple experiments, determine the mass of the Earth
A mass of 1/4 slug is attached to a spring having a spring constant of 1 lb/ft. The mass is started in motion by initially displacing it 2ft. Find the equation of motion of the mass
A 20-kg mass is attached to a spring. If the frequency of the simple harmonic motion is 2/pi cycles, What is the frequency of simple harmonic motion
A 50-g bullet is fired from a rifle having a barrel 0.540 m long. Choose the origin to be at the location where the bullet begins to move. Determine the work done by the gas on the bullet
A charged particle of mass 0.0020 kg is subjected to a 6.0 T magnetic field which acts at a right angle to its motion. what is the magnitude of the charge on the particle
A multi-turn square loop of wire, 2.0 cm on each side, is oriented so that a 5.00 mT magnetic field makes a 30.00 angle with the normal to the plane of the square. how many turns are there in this l
A basketball player of height 1.8 m is standing 2.4 m in front of a convex spherical mirror of radius of curvature 4.0 m. Determine the size of the image
A series AC circuit contains a resistor, an inductor of 240 mH, a capacitor of 4.40 µF, and a source with ?Vmax = 240 V operating at 50.0 Hz. Calculate the resistance in the circuit
The sound from a very high burst of fireworks takes 4.5seconds to arrive at your eardrums. How thick is each layer of air
A ladybug with a velocity of 10.0 mm/s [W] crawls on a chair that is being pulled [50 degrees N of W] at 40.0 mm/s. What is the velocity of the ladybug
The frequency of a tuning fork can be found by the methodshown in Figure 13-24. A long tube open at both ends is submergedin a beaker of water, and the vibrating tuning fork is placed nearthe top of
What is the law of reflection, What is the law of refraction? What other name is sometimes given to it?
The ocean of the world covers three-quarters of the earth's surface and have an average depth of 3.8 km. how much would sea -level rise if one assumes that the surface area of the oceans does not incr
How is sound produced? Key words: Transverse, Longtitudinal, particles. How are standing waves set up in the instruments? Key words: incident, reflected, interference, wavelength, string/pipe length
you are conducting an osmosis experiment with a semi-permeable dialysis membrane of fixed pore size. how much bigger are the pores in the membrane
A system has 1000 joules of energy added to it and performs 800 joules of work. Calculate the change in internal energy
Gravity affects any object that has mass. Does gravity affect light rays? What effect does the sun have on the light beam
Two point charges are located on the x axis. The First is a charge +Q at x = -a. The second is an unknown charge located at x = +3a. What are the two possible values of the unknown charge
A bridge is constructed of a material that is known to expand 0.1 cm for eeach meter in length when subjected to a temperature increase of 10 C. How much wil the bridge have expanded
A proton in the upper atmosphere moves at 8.8×105 m/s , perpendicular to Earth's magnetic field, Find the curvature radius of the proton's trajectory
An electron enters a magnetic field of .75 T with a velocity perpendicular to the direction of the filed. At what frequency does the electron traverse a circula path
A closed and elevated vertical cylindrical tank with diameter 1.70 m contains water to a depth of 0.800 m. How much time does it take for all the water to drain from the tank
A uniform electric field of 1.0 N/C is set up by a uniform distribution of charge in the xy-plane. What is the electric field inside a metal ball
A ray of light traveling through air encounters a 1.4 cm-thick sheet of glass at a 38 degree angle of incidence. How far does the light ray travel inside the glass