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Some students connected a length of nichrome wire to a variable power supply to produce between 0.0 V to 10.0 V across the wire. They then measured the current through the wire for several voltages. T
A simple pendulum has a length (l) of 1 m. In free vibration the amplitude of its swings falls off by a factor e in 50 swings. The pendu- lum is set into forced vibration by moving its point of suspen
(1) Puck 1 has a mass of 146g; puck 2 has a mass of 48g. The centers of the pucks are 20 cm apart. At what position is the center of mass located, relative to the center of puck 1?(2) Assume that for
The warm source of a Carnot cycle has a temperature of 100 ?C while the cold source consists of melting ice.When the cycle operates for 1 h it is observed that 1 ton of ice has melted.calculatethe hea
Use the data sheets provided to draw a graph that will be a straight line if this relationship holds. Plot the data for molybdenum and barium. Do these graphs support the above relationship?
What are the spins and isospins of all of the possible particles in the initial and ?nal states? Using isospin invariance, determine the branching ratio of Δ+ → π +n and &Del
A resistor of 368 is connected in series with a capacitor of 50.0 µF capacitance. a.) A sinusoidal signal of f = 11.3 Hz experiences an impedance of.&nbs
Following Activity 2-1, a 488 nF capacitor (C) is connected in series with a 543 ? reference resistor (R0). [See Figure 8.4 in the manual.] Vmax, the signal generator?samplitude (or mag
A consulting group surveyed General Mills, Inc. employees to research the factors that affect their satisfaction with their quality of life. A special index, called the index of satisfaction, was used
You need a transformer that will draw 34W of power from a 220 V (rms) power line, stepping the voltage down to 12V (rms).a. what will be the current in the secondary coil?b.what should be the resistan
A metal sign for a car dealership is a thin, uniform right triangle with base length b and height h. The sign has mass M.If M = 6.40kg ,b = 1.70m and h = 1.60m , what is the kinetic energy of the sign
Life scientists use ultracentrifuges to separate biological components or to remove molecules from suspension. Samples in a symmetric array of containers are spun rapidly about a central axis. The cen
A narrow beam of white light is incident on a sheet of quartz. Thebeam disperses in the quartz, with red light (?˜700nm)traveling at an angle of 26.3o with respect to thenormal and violet light
A building has a single elevator at the atrium, serving 4 floors.Someone on the first (ground) floor who wants to ascend pushes a single button ("Up") to call the elevator. Similarly, someone on the 4
What is the difference between Truss and a Frame? And what is the difference between frame and machine?
Describe internal normal, shear force, and moment inside a member of a frame. What causes these questions? Describe the parallel axis theorem for area moment of inertia and mass moment of inertia?
What are the magnitude and direction of the x and y components of the electric field at the origin if there is a +2.0nC source charge located at x=1.0cm, y=0.0cm and a -4.0nC source charge locate
mλ=d·sinθm where λ is the wavelength of the spectral line being observed, d is the groove spacing of the diffraction grating, m is the order o
Discuss the effects of different floor angles on the distance up the incline that you will have to sit in a movie theatre to maximise your viewing angle.
A small monochromatic light source, radiating at 455 nm, is rated at 992 W. If the source radiates uniformly in all directions, determine its radiant intensity in SI units. Give your answer to 1 dec
Consider two parallel-plate capacitors, C1 and C2, that are connected in parallel. The capacitors are identical except that C2 has a dielectric inserted between its plates. A 115 V battery is connecte
Two forces F1 and F2 have magnitudes 335 and 478 pounds respectively, and act on a body at an angle of 45 degrees 40 minutes with each other. Fin, to the nearest ten minutes, the angle between the
A 26.79 g sample of a substance is initially at 23.6 C. After absorbing 1001 J of heat, the temperature of the substance is 198.1 C. What is the specific heat (c) of the substance?
When two lenses are used in combination, the first one forms an image that then serves as the object for the second lens. The magnification of the combination is the ratio of the height of the final i