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A) If the wavelength of a maximum intensity decreases from 1840nm to 1560nm as the bulb's voltage is increased, by how many celcius does the filament temperature increase?
B) By what factor does the total radiation from the filament increase due to this temperature change?
A proton (with a rest mass m=1.67×10?27kg) has a total energy that is 4.00 times its rest energy. What is the magnitude of the momentum p of the proton
A 1000-kg car travelling at a speed of 32 m/s skids to a halt on wet concrete where f_k = 0.3. How long are the skid marks.
An electron beam in an oscilloscope is deflected by the electric field produced by oppositely charged metal plates. If the electric field between the plates is 2.75 105 N/C directed downward, what is the magnitude and direction of the force on eac..
Suppose that an ion source in a mass spectrometer produces doubly ionized gold ions (Au2+), each with a mass of 3.27 × 10-25 kg. evaluate the radius of the path
She notices a group of workers down the walkway who have suddenly blocked her path, and she makes a quick stop in 1.8 seconds. What is Suzies average acceleration
An element in its solid phase forms a cubic crystal lattice with mass density 7950 kg/m^3. What is the element's atomic mass number
A ship sets out to sail to a point 141km due north. An unexpected storm blows the ship to a point 138 km due east of its starting point. (a) How far (in km) and (b) in what direction (as an angle from due east, where north of east is a positive an..
Whats the coefficient of the kinetic friction of the tire. What is the acceleration of the car.
A distant galaxy emits light that has a wavelength of 699.1 nm. On earth, the wavelength of this light is measured to be 701.6 nm, Decide whether this galaxy is approaching or receding from the earth
A 230mW vertically polarized laser beam passes through a polarizing filter whose axis is 33? from horizontal. What is the power of the laser beam
A copper rod 25 cm long having a cross-sectional area of 7.5 cm2 is used to connect a boiler maintained at 100 oC to a large block of ice at 0 oC. What is the rate of change in entropy of the ice
A 50 kg diver has an angular velocity of 6 rad/s about her medial-lateral axis of rotation when she leaves the board in a layout position, what is her radius of gyration in the tuck positions
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