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A stretched string fixed at each end has a mass of 40g and alength of 8.00m. The tension in the string is 49.N
(a) Determine the positions of the nodes and antinoes for the3rd harmonic.
(b) What is the vibration frequency for this harmonic?
Shaving/makeup mirrors typically have one flat and one concave (magnifying) surface. What is the focal length of the mirror
An asteroid is discovered heading straight toward Earth at 13 . An international team manages to attach a giant rocket engine to the asteroid. The rocket fires for 10 , after which the asteroid is moving at 29 to its original path at a speed of 18..
A 1.43 kg object is held 1.28 m above a relaxed, massless vertical spring with a force constant of 318 N/m. The object is dropped onto the spring. How far does the object compress the spring
q1. what is the frequency of ultrasound in a medium if he wave length is 3.0 x 10-3 m and velocity is 1300 mmms?q2. an
a 19.2 kg sled is being pulled across a horizontal surface at a constant velocity. determine the coefficient of kinetic friction
The work function of an element is 3.2 eV. Photons of a certain energy are found to eject electrons with a kinetic energy of 2 eV. What is the speed of the ejected electrons
It is desired that 5.5 microcoulomb of charge be stored on each plate of a 2.5 microF - capacitor. What potential difference is required between the plates
What is force necessary on one end of apparatus in order to lift the car? How much work is done lifting the car?
A uniform electric field exists in the region between two oppositely charged parallel plates 1.67cm apart, Find the speed of the proton at the moment it strikes the negatively charged plate
a) What is the total charge of the neptunium nucleus (The neutral neptunium atom has 93 electrons.) = 1.49×10-17 C b) What is the magnitude of its electric field at a distance of 5.29×10-10 m from the nucleus
A 300 kg piano slides 4.50 m down a 30° incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. The effective coefficient of kinetic friction is 0.40.
A person runs up a long flight of stairs in 10 seconds. If the person's weight is 600 N, determine the person's power output
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