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A rod of mass 0.300 kg and length 0.36 m has four small balls mounted on it. Two balls (shown in red on the diagram), each of mass 0.84 kg, are mounted at opposite ends of the rod. Two other balls, each of mass 0.24 kg (shown in blue on the diagram), are each mounted a distance 0.09 m from the center of the rod. The rod rotates on an axle during the center of the rod (indicated by the "x" in the diagram), perpendicular to the rod, and it takes 1.0 seconds to make one full rotation.
stick_4balls
1) What is the kinetic energy of this object?
2) What is the angular speed of the rotating device?
3) What is the moment of inertia of the device about its center?
A person eats a container of yogurt. The Nutritional Facts labelstates that it contains 240 Calories (1 Calorie = 4186 J). What mass of perspiration would one have to lose to get rid of thisenergy? At body temperature, the latent heat of vaporizat..
A 75kg hiker climbs to the top of a 4000m -high mountain. The climb is made in 5.0h starting at an elevation of 3000m. Calculate the average power output in horsepower
Vector A points in the negative x direction. Vector B points at an angle of 60 above the positive x axis, Given A+B+C=0, find the magnitude of A and B
during heavy rain a section of a mountainside measuring 3.8 km horizontally perpendicular to the slope 0.44 km up along
A sample of liquid has an initial volume of 1.5L. The volume is reduced by 0.2mL, when the pressure increases by 140kPa. What is the bulk modulus on the liquid
A generator is made from a set of 7000 loops of area 5.00 cm2rotating at an angular frequency of 600 radians per second. Themagnetic field is created by a solenoid, completely surrounding the generator coil, and carrying a current of0.500 A.
A round pipe of varying diameter carries petroleum from a wellhead to a refinery. At the wellhead the pipe's diameter is 56.1 cm and the flow speed of the petroleum is 13.1 m/s. what is the pipe's diameter at the refinery
Suppose a nucleus of 93X236 fissions into two fragments whose mass ratio is 0.33:0.67. With the aid of the drawing, estimate the energy (in MeV) released during this fission.
A solid sphere of mass 4.0 kg and radius 0.12 m starts from rest at the top of a ramp inclined 15' degree and rolls to the bottom. What is the linear speed of the sphere when it reaches the bottom of the ramp
A 10.0 -long solenoid of diameter 0.400 is wound uniformly with 800 turns. A second coil with 50.0 turns is wound around the solenoid at its center.What is the mutual inductance of the combination of the two coils?
You have carefully prepared the wave function of an electron to be in the first energy eigenstate of an infinite potential well spanning a length a. Now you decide to release the electron from the prison by turning off the infinite potential barri..
The components of a simplest clamping circuit.
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