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The pendulum in the figure consists of a uniform disk with radius r = 15.0 cm and mass 420 g attached to a uniform rod with length L = 380 mm and mass 240 g.
(a) Calculate the rotational inertia of the pendulum about the pivot point.
(b) What is the distance between the pivot point and the center of mass of the pendulum?
(c) Calculate the period of oscillation.
If John Glenn weighed 640 N on the Earth's surface, i) how much would be having weighed if his Mercury spacecraft had (hypothetically) remained at twice the distance from the center of the earth? ii) Why is it said that an astronaut is never truly..
A school bus takes 0.89 h to reach the school from your house. If an average velocity of the bus is 21.1 km/h to the east, what is the displacement.
A positive charge of 4.80 C is fixed in place. From a distance of 3.60 cm a from the fixed positive charge, a particle of mass 5.70 g and charge +3.70 C is released from rest.
A straight wire carrying a 2.7 A current is placed in a uniform magnetic field of magnitude 0.25 T directed perpendicular to the wire. Find the magnitude of the magnetic force on a section of the wire having a length of 10 cm
In the neighborhood of the origin in the coordinate system x,y,z, there is an electric field E of magnitude 100 statvolts/cm, What magnetic field does this observer report
A disk spinning with angular velocity , w=12 rad/s slows down to a stop in 4 seconds. What is the angular displacement delta theta
A member of an aircraft maintenance crew wears protective earplugs that reduce the sound intensity by a factor of 360. When a jet aircraft is taking off, the sound intensity level experienced by the crew member is 91 dB. What would the sound intensit..
A metal object has a net charge of 1.761 x 10-12 C. How many excess or missing electrons does it have
An electron is in the first excited orbit of hydrogen, corresponding to n = 2. Find the radius of the orbit.
questionin an x-ray machine electrons are accelerated and then fired so that they are incident on a metal target. which
Calculate the smallest amount of kinetic energy the electron must have in order to leave its circular orbit and move to infinity far from the proton
A beam of gamma rays from a distant galaxy is observed through two polarizing filters whose transmission axis is at a 45 degree angle relative to each other here on earth
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