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what kind of collision is exhibited by a marble going down a chute onto a ruler and colliding with four other marbles on the ruler, and why?
At amusement parks, there is a popular ride where the floor of a rotating cylindrical room falls away, leaving the backs of the riders "plastered" against the wall. Suppose the radius of the room is 4.00 m and the speed of the wall is 10.4 m/s whe..
The hammer throw is a track-and-field event in which a 7.30-kg ball (the hammer) is whirled around in a circle several times and released. It then moves upward on the familiar curved path of projectile motion and eventually returns to the ground s..
You have a thermodynamic system with three states. You observe the probabilities p1 = 0.9, p2 = 0.09, p3 = 0.01 at T = 300K. What are the energies "2 and "3 of states 2 and 3 relative to the ground state?
The ground level of the neutral lithium atom is doubly degenerate (that is, g = 2). The first excited level is 6-fold degenerate and is at an energy 1.2 eV above the ground level. In the outer atmosphere of the sum, which is at a temperature of ab..
You witnessed a hit-and-run accident when you were driving a car at velocity u towards a radio station very far ahead on the street. Here is how it happened: you were listening to the radio when you \saw" a car driving towards you hit a person sta..
An AC adapter for a telephone answering machine uses a transformer to reduce the line voltage of 120 V to a voltage of 5.00 V. The RMS current delivered to the answering machine is 400 mA. If the primary (input) coil of the transformer has 600 tur..
A resonant circuit in a radio receiver is tuned to a certain station when the inductor has a value of 0.311 mH and the capacitor has a value of 16.4 pF. Calculate the frequency of the radio station.?
An AC voltage source has an output of ?V = 163.0 sin(582t) Volts. Calculate the RMS voltage. What is the frequency of the source?
A dump truck designed to carry grain is shown. The dump bed is actuated by a hydraulic cylinder AB. If the combined weight of the dump bed plus its load is 800 lb, and the bed is at the position shown, determine the forces acting on the bed at B and ..
A current of 14.0 mA is maintained in a single circular loop of 3.80 m circumference. A magnetic field of 0.610 T is directed parallel to the plane of the loop. (a) Calculate the magnetic moment of the loop. Please have answer in mA · m2
A series ac circuit contains a 330ohm resistor, a 13.0mH inductor, a 2.50microF capacitor, Find the average power delivered to the entire circuit
Two spheres are 7.66 m apart, and each has the same amount of positive charge. what is the charge on each sphere
A water hose 2.75 cm in diameter is used by a gardener to fill a 28.0-liter bucket. (One liter = 1,000 cm3.) Over what horizontal distance can the water be projected
A 1.5kg weight hangs from a 8.0kg, solid wheel with a 20 cm circumfrence by a thin string wrapped several times around the circumfrence. How fast (in radians/second) is the wheel turning just before the weight hits the floor
A harpsichord string of length 1.60 m and linear mass density 26.0 mg/m vibrates at a (fundamental) frequency of 460.0 Hz. What is the speed of the transverse string waves
Two resistors A and B are 60,000 and 40,000 (omega sign) respectively and are in series across a constant power supply of 100V. What amount of current is flowing in each of the 3 resistors
A 40-kg girl is bouncing on a trampoline. During a certain interval after leaving the surface of the trampoline, kinetic energy decreases to 240J from 470J. How high does she rise during this interval? Avoid air resistance.
Two tugboats pull a disabled supertanker. Each tug exerts a constant force of 1.2×106 , What is the total work they do on the supertanker
A transparent oil with index of refraction 1.21 spills on the surface of water (index of refraction 1.33), determine the thickness of the oil slick
Laser light with a wavelength lambda = 660nm illuminates a pair of slits at normal incidence.
A bar magnet with its north pole pointing toward a coil of wire with a cross-sectional area of 0.020 m2, find the magnitude of the induced emf in the coil of wire
q1. a 4 kg fish swimming 3 ms swallows an absent minded 2 kg fish at rest. what is the speed of the large fish
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