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A uniform bar of length l and mass m is suspended by two equal springs of equilibrium length b and force constant k , as shown in the diagram. find the normal modes of small oscillation in the plane.
What is a scale useful in measuring the temperature of super cold substances
The speed of a bobsled is increasing because it has an accelerationof 2.4m/s^2. At a given instant in time, the forces resistingthe motion, including kinetic friction and air resistance, total450 N. The mass of the bobsled and its riders is 270kg. Wh..
A Carnot engine whose high-temperature reservoir is at 680{\rm K} takes in 530{\rm J} of heat at this temperature in each cycle, What is the temperature of the low-temperature reservoir
An ore sample weighs 17.5N in air. When the sample is suspended by a light cord and totally immersed in water, the tension in the cord is 11.2N. Find the total volume of the sample
An asteroid is moving along a straight line. A force acts along the displacement of the asteroid and slows it down. The asteroid has amass of 4.9 × 104 kg, and the force causes its speed to change from 7500 to 4800 m/s.
An empty metal box with a mass of 0.275 kilogram is moved along a conveyor belt at a constant speed of 1.34 m/s before sliding across a frictionless track. Find the momentum and kinetic energy of the box when it leaves the conveyor belt
Released from rest at the same height, a can of frozen juice rolls to the bottom of the same hill. What is the translational speed of the frozen juice can while it reaches bottom.
a steel ball is dropped from a buildings roof and passes a window taking 0.115 s to fall from the top to the bottom of
Two charged particles are separated by 1 m. The electric force on each one (from the other one) is 1 N. If the charges are then separated by 2 m, the electric force on each one will be
Explain how much time will it take for the police officer to reach the speeder, assuming that the speeder maintains a constant speed?
Two diffraction gratings, A and B, are located at the similar distance from the observation screens. Light with the same wavelength λ is utilized for each. The separation among adjacent principal maxima for grating A is 2.7cm, and for grating B it is..
A 30-caliber rifle with a mass of 2.84 kg fires a 9.73- g bullet with a speed of 556 m/s with respect to the ground. What kinetic energy is released by the explosion of the gunpowder
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