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A 1.0-cm-tall object is 60 cm in front of a diverging lens that has a -30 cm focal length. Calculate the image position and the image height
The angle of reflection of a reflected ray is 75º. what is the angle formed by the incident ray and the reflected ray?
A uniform ladder 10.0 m long is leaning against a frictionless wall at an angle of 60.0° above the horizontal. find the magnitude of the frictional force exerted on the ladder by the floor
Transcranial magnetic stimulation (TMS) is a noninvasive technique used to stimulate regions of the human brain. Determine the induced emf within a circle of tissue of radius 2.0 mm and that is perpen
During a lightning flash, 18 C. of charge moves through a potential difference of 8.4E+07 V. How much electrical potential energy is released
Start from the expression of the electric filed outside an infinite sheet of uniform surface charge density,E=sigma/2epsilon, derive the electric field just outside an ideal conductor: E=sigma/epsi
You (height of your eyes above the water, 1.75 m ) are standing 2.00 m from the edge of a 2.50 m deep swimming pool. How far from the side of the pool is your cell phone
A 7.60 cm length of straight wire runs horizontally along a north-south line. Find the direction of the magnetic force on the wire
Two blocks (M1 = 2.99 kg and M2 = 6.13 kg) are in contact on a frictionless, horizontal tabletop. What is the magnitude, F, of the applied force
A store sign of mass 4.21 kg is hung by two wires that each make an angle of ? = 42.3° with the ceiling. What is the tension in the right wire
A 1 m long solenoid carries a current of 10,000 A. if the magnetic field at the center of the solenoid is 80 tesla , how many turns are in the solenoid
2 parallel straight wires are 9.0 cm apart and each caries a 10.0 A current in the same direction. find with what force does the wire pull on the cart
A particle P with mass 9kg has position vector r(r=2.5m) and velocity v(v=45.0 m/s). find the z-component of the angular momentum of the particle
Is a transformer has 100 primary turns and 200 secondary turns. What is the current in the secondary coil if the primary coil has 10 A current
A store sign of mass 4.21 kg is hung by two wires that each make an angle of ? = 42.3° with the ceiling. What is the tension in the left wire
How large is the image of the Sun on film used in a camera with a 27 mm focal-length lens? The Sun has diameter 1.4 x 10^6 km
A 0.135-g spider hangs from the middle of the first thread of its future web. What is the tension in the thread
In the Large Hadron Collider (LHC) located at CERN in France and Switzerland protons move in a circle of radius 4.96km. What is the magnitude of the momentum, p, of a proton that moves at a radius of
Four masses, m1 = 5.30 kg, m2 = 4.10 kg, m3 = 9.30 kg, m4 = 4.10 kg, are hanging from the ceiling, What is the string tension in the rope connecting the masses m1 and m2
An elevator cabin has a mass of 358.1 kg, and the combined mass of the people inside the cabin is 165.3 kg. What is the tension in the cable
When an ambulance is stationary, the siren gives off a sound at a frequency of 500 Hz. what will be the speed of a driver moving toward the ambulance if the driver perceives a frequency of 523 Hz
When an ambulance is stationary, the siren gives off a sound at a frequency of 500 Hz. What will be the frequency of the siren when the ambulance moves
An observer that is listening to a stereo through a speaker decides to walk away from the speaker to a position that is ten times further than his original position. What will be the change in the s
The note "middle C" on a piano has a frequency of 512 Hz in the fundamental tone. What are the frequencies of the next two highest C notes
A very long wire generates a magnetic field of .0050 x 10^-4 T at a distance of 3.0mm. What is the magnitude of the current