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A disk of radius R ad thickness w has a mass density that increases from the center outward, given by ?=?0r/R, where r is the distance from the axis of the disk. A) Calculate the total mass M of the disk. B) Calculate the rotational inertia about the disk axis in terms of M and R.
A 170g mass attached to a horizontal spring oscillates at a frequency of 3.70Hz, Determine Amplitude and Phase Constant
A 1010 kg car and 4600 kg truck undergo a perfectly inelastic collision. Find the velocity of the wreckage immediately after the collision
A lamp which is 12.0 cm tall is 264.0 cm in front of a converging lens which has a focal length of 80.0 cm, What is the image distance for this lamp and lens combination
A shell is shot with an initial velocity v0 of 18 m/s, at an angle of ?0 = 60° with the horizontal. How far from the gun does the other fragment land
X-rays are used for analyzing molecular structure. What is the frequency (in Hz) of X-rays that have a wavelength of ? = 13.3 nm
You are traveling on an airplane. The velocity of the plane with respect to the air is 130.0 m/s due east. What is the speed of the plane with respect to the ground
The rectangular gate CD shown in the figure is 1.8 m wide and 2 long. Assuming the material of the gate to be homogeneous and neglecting friction at the hinge C, determine weight of the gate necessary to keep it shut until the water level rises to..
What would be the potential difference VC - VB across the thin resistor if the battery emf is 4.00 volts? Suppose that the electric field in the thick wires is very small (so that the potential differences along the thick wires are negligible)
In an L-R-C series circuit L=0.500 H, R=380.0 ohms, and C=7.50 microF. The voltage amplitude of the source is 250.0 V. Find the rms voltage across the capacitor
a stone is dropped from the roof of a building; 1.20 seconds after that, a second stone is thrown straight down with an initial speed of 22m/s, What are the speeds of the two stones just before they hit the ground
A 7.3×10?4V/m electric field creates a 5.0×1017electrons/s current in a 2.0-mm-diameter aluminum wire. What is the mean time between collisions for electrons in this wire
A rotating fan completes 1000 revolutions every minute. Consider a point on the tip of a blade, at a radius of 0.11 m. What is the speed of the point
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