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Nik is walking a tightrope across Niagara Falls. The tightrope spans 460m. When he stands in the center of the tightrope it deflects downward 1.5m. Find the tension in the tightrope while he is standing at this point.
in a single-slit diffraction experiment, a beam of monochromatic light of wavelength 630 nm is incident on a slit of width 0.4 mm. what is the width of the central bright fringe
An eagle is flying horizontally at 4.8 m/s with a fish in its claws. It accidentally drops the fish. How much time passes before the fish's speed doubles
A galvanometer has an internal resistance of 100 ? and deflects full-scale at a current of 2.00 mA. how should this resistor be connected to the galvanometer
An electron moves in a circular path perpendicular to the constant magnetic field with a magnitude of 2.00 mT. The angular momentum of the electron about the center of the circle is 5.50 multiplied by 10-25 J•s.
A point source of light is located at the bottom of a steel tank, and an opaque circular card of radius 5.7 cm is placed over it. What is the index of refraction of the fluid
Stopping a 747 A 747 jetliner lands and begins to slow to a stop as it moves along the runway. find How far has it traveled in this time
Two 1.7 kg masses are 1.7 m apart on a frictionless table. Each has +1.1 µC of charge. What is the initial acceleration of the mass if it is released and allowed to move
How man electrons are present in a 1.5C charge? Determine the mass of the 1.5 C charge. 1e=9.1x10^-31kg. determine the resistivity constant if the wire has a cross sectional area of 2x10^-5 m^2
A toy train rolls around a horizontal 1.30 diameter track. The coefficient of rolling friction is 0.10.
A cue ball (mass = 0.145 kg) is at rest on a frictionless pool table. The ball is hit dead center by a pool stick, which applies an impulse of +1.15 N · s to the ball. Find the velocity of the second ball just after it is struck
An automobile has a 24 Watt reading lamp in the ceiling of the car. If it is attached to the 12 Volt car battery, how much current flows through the bulb
A mass spectrometer applies a voltage of 2 kV to accelerate a singly charged positive ion. A magnetic field of B = 0.400 T then bends the ion into a circular path of radius 0.305m. What is the mass of the ion.
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