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A pendulum consists of a uniform disk with radius 10 cm and mass 400 g attached to a uniform rod with length 500 mm and mass 285 g (see the figure). A) Calculate the rotational inertia of the pendulum about the pivot. B) What is the distance between the pivot and the center of mass of the pendulum? ( m) C) Calculate the period of oscillation.
A container explodes and breaks into three fragments that fly off 120 degrees apart from each other, what is the speed of the other two fragments
a person moves a full sam's club shopping cart mass=80.0 kg from rest to a velocity of 1.30 m/s over a distance of 1.80 meters to secure a spot in check out line. Determine the change in the chart's momentum
You measure an electric field of 1.32*10^6 N/C at a distance of 0.156m from a point charge. What is the magnitude of the charge
You and a friend have been given the task of designing a display for the Physics building that will demonstrate the strength of the electric force, calculate the necessary amount of charge on the marble for a reasonable ramp angle of 15 degrees
What electric potential energy will a fourth charge q4 = 4mC and located at the origin with respect to the other three charges experience and what is the pendulums period for small angle oscillations?
The driver of a 1780 car traveling on a horizontal road at 108 suddenly applies the brakes. How many meters does the car travel before stopping
An airplane of mass 1.40 x 10^4 kg is in level flight, initially moving at 56.0 m/s. Find the speed of the airplane after it has traveled 4.4 102 m
In fair weather, over flat ground, there may be a downward electric field of 155 N/C. Calculate the charge density of the air
imagine that you spill a cup (250 g) hot water, initially at 75 C, onto the cold ground on a winter fay, Calculate the net change in the entropy of the universe due to this process, and comment on the result
n = 3.24 mol of Hydrogen gas is initially at T = 357 K temperature and pi = 2.79×105 Pa pressure. The gas is then reversibly and isothermally compressed until its pressure reaches pf = 7.62×105 Pa. How much work did the external force perform
In order better to map the surface features of the Moon, Calculate the satellite's kinetic energy, gravitational potential energy, and total orbital energy
A shell is fired with a horizontal velocity in the positive x direction from the top of an 80-m high cliff. Determine the initial speed of the shell
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