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The ripples in a certain groove 16.3 centimeter from the center of a 33-rpm phonograph record have a wavelength of 1.26 mm.
Find what will be the frequency of the sound emitted?
f=___________Hz
Speedboat A negotiates a curve whose radius is 198 m. Speedboat B negotiates a curve whose radius is 290 m. Each boat experiences the same centripetal acceleration. What is the ratio vA/vB of the speeds of boats.
A sign has a mass of 1050 kg, a height h = 1 m, and a width W = 4 m. It is held by a light rod of length 5 m that is perpendicular to a rough wall. What is the smallest value of the coefficient of friction
A 2.50 kg object is attatched to a spring and placed on a horizontal, smooth surface. Find the total energy of the oscillating system
an airplane with a speed of 82.7 ms is climbing upward at an angle of 31.8 deg with respect to the horizontal. when the
A speed ramp at an airport is basically a large conveyor belt on which you can stand and be moved along. What is the speed at which the belt of the ramp is moving
A chimney sweep is climbing a long ladder that leans against the side of a house. find the displacement of her feet from the base when she has climbed twice as far
We want to launch the package in such a way that it will never come back, and when it is very far from the asteroid it will be traveling with speed 187 m/s. We have a large and powerful spring whose stiffness is 3.0 105 N/m. Explain how much mus..
A 5.56 10-5 H solenoid is constructed by wrapping 62 turns of wire around a cylinder with a cross-sectional area of 8.30 10-4 m2 , Determine the change in the length of the solenoid.
A 0.75 kg ball attached to the end of a horizontal cord, is rotated in a circle of radius 1.9 m on a frictionless horizontal surface, What is the max speed the ball can have
For a glass lens submerged in water (n=1.33), the critical angle of incidence at which total internal reflection begins to happen is 60.1 degrees. What is the index of refraction of the glass
The ammonia molecule NH3 has a permanent electric dipolemoment equal to 1.31 D, where 1 D = 1debye unit = 3.34 multiplied by10-30 C·m. Calculate the electric potential dueto an ammonia molecule at a point 51.0 nmaway along the axis of the dipole. (S..
converging lens with a focal length of 6.00cm forms an image of a 5.00mm -tall real object that is to the left of the lens. where are the object images located
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