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Suppose a mangetic field of 7.45 mT is pointing into a piece of paper and then we shoot a small charged metal ball, 4.8 grams and +1.52 uC, What is the magnitude and direction of the force on the par
A cosmic ray interacts for a mere 11fs with its detector. Having just learned about the uncertainty principle, Find the minimum uncertainty in that energy
An electron is confined to a box the size of a small atom, 0.12nm across. ?p, What wavelength photon would have the same energy
Suppose an RLC circuit must be created by choosing an inductor and capacitor to place in series with a 1200 ohm resistor. To tune in the AM band frequencies, calculate an appropriate value for the in
A lens is placed 15 cm from the lamp, and the image is observed 32 cm from the lamp. find the distance of the second image from the lamp
A cylindrical grain bin 24.0 ft in diameter is filled with corn whose weight density is 45.1 lb/ft^3. How tall can the bin be for the floor
Suppose you are at the earth's equator and observe a satellite passing directly overhead and moving from west to east in the sky. How far above the earth's surface is the satellite's orbit
What is the phase angle in a series LRC cicuit with L= 50 mH, R=20ohms, C=100mF? The rms applied voltage is 120 Volts at 60 Hz, How much power is dissipated in the resistor
A series RC circuit with R=10 ohms and C=330mF is connected to a 120 Volt rms 60 Hz source. Find the voltage across the capacitor
Light with a photon energy of 4.5 eV impinges on the surface of a material with work function 0.4 eV to eject electrons
Consider an LR circuit with a variable inductor and with deltaVs=150 V, f=60Hz, R=5 ohms. Calculate the power in the resistor
A car moving at 30.0 m/s is approaching a factory whistle that has a frequency of 500 Hz. find the apparent frequency of the whistle as heard by the driver
To a first approximation, the velocity of sound in air for different temperatures can be calculated as v=(331+0.6T) m/s, How far away was the lightning
A student places an object on the 5.0 cm mark of the meter stick. He places a positive lens that he knows has a focal length of 15.0 cm at the 30.0 cm mark on the meter stick. From the data what is
The Position of the object (wire gauze) on the meter stick is at the 5.00 cm mark. What is his value for the focal length of the lens
You're an optometrist, mounting a projector at the back of your 4.2m -long exam room, 2.6m above the floor. At what height should you center the pattern on the wall
A 83.55kg woman walked a 5k race in 53.33 minutes. How much power did it take to complete the race
If the operators of a spy satellite pondered using it to photograph license plate numbers. what is the smallest distance between two points that it can resolve
A movie star catches a reporter shooting pictures of her at home. She claims the reporter was trespassing and to prove her point, How far away from the subject was the reporter standing
What is the magnification of an astronomical telescope whose objective lens has a focal length of 77 cm, What is the overall length of the telescope when adjusted for a relaxed eye
If a student with relaxed "normal" eye finds a magnifying glass with a focal length of 78 mm, What is the magnification of this magnifying glass
A 2.50m long pipe closed at one end, Find the number of the harmonic corresponding to this frequency
Suppose a monochromic light strikes a grating at normal incidence. what is the frequency of the light that passes through
A small square loop carries a 48A current. The on-axis magnetic field strength 43cm from the loop is 6.8nT
What is the angular separation of two spectral lines of wavelengths 439 nm and 395 nm formed in order m=2 with a 367 line/mm grating