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A harp string plays the A above middle C, vibrating at itsfundamental frequency of 440 Hz. The tension in the string is57.8 N, and its mass density is5.72×10-4 kg/m. What is the distance between the nodes of the standing wave pattern?
Light of wavelength 5.30 102 nm passes through a slit of width 0.210 mm. Determine the width of the first-order bright fringe
The windshield of a speeding car hits a hovering insect. Consider the time interval from just before the car hits the insect to just after the impact. Which of the following are right.
A system is acte on by its suroundings in such as way that is receives 50 J of heat while doing 20 J of work. What is its net change in internal energy?
At an amusement park there is a ride in which cylindrically shaped chambers spin around a central axis. What is the radius of a chamber
vector identiteis can be proven by grinding them out in component form but it is more satisfying to use methods based
A 35.1 kg girl and a 58.4 kg boy are on the surface of a frozen lake, 14.5 m apart. Calculate the magnitude of the girl's acceleration
when a 100ohm resistor is connected to a battery of emf e and internal resistance of r the battery delivers a power of
A 0.57 kg object connected to alight spring with a force constant of 24.8 N/m oscillates on a frictionless horizontal surface. Determine the maximum speed of the object
To develop muscle tone, a woman lifts a 4.50 kg mass held in her hand. She uses her biceps muscle to flex the lower arm through an angle of 60.0°. How much work does she do
A 565 N mountain climber moves across a rope strung across a canyon. When she is more than halfway across, What are the tensions in the rope in front and behind her
Using Ampère's law, calculate the magnetic field inside and outside of a toroidal coil with a radius of 25 cm
When an air capacitor with a capacitance of 400 nF (1nF=10^(-9) F)is connected to a power supply, the energy stored in the capacitoris 2.05×10^(−5) J. While the capacitor is keptconnected to the power supply, a slab of dielectric is inserted that ..
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