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Compute all parts of given problem:
Problem: A computer hard disk 8.0 cm in diameter is initially at rest. a small dot is painted on the edge of the disk. The disk accelerates at 620 rad/s2 for 1/2s, and then coasts at a steady angular velocity for another 1/2s.
Part A: What is the speed of the dot at t = 1.0 s?
Part B: Through how many revolutions has it turned?
I need help to determine through how many revolutions has it turned.
A block of mass m = 0.2 kg, in simple harmonic motion, has an amplitude of 3.5 cm and a maximum speed of 70 cm/s. What is the potential energy of the system when the block is 2 cm away from the equilibrium position?
Two beads slide along a straight, frictionless wire. The first has a mass of 0.5 Kg and a velocity of 5m/s moving to the left. They collide and stick together, moving as one object. A)Find the magnitude and direction of the velocity of the beads a..
A steep cliff west of Lydia's home reflects a 1460-kHz radio signal from a station that is 69.9 km due east of her home. what is the minimum distance of the cliff from her home
On a horizontal frictionless surface, a small block with mass 0.200 kg has a collision with a block of mass 0.400 kg. What is the total kinetic energy of the two blocks after the collision (in joules)
he plane is traveling horizontally at 150.0 m/s at a height of 70.0 m above the ground. Illustrate what horizontal distance does the package travel before striking the ground?
A cube of wood having an edge dimension of 22.0 cm and a density of 650 kg/m3 floats on water. What is the distance from the horizontal top surface of the cube to the water level?
An unstable high-energy particle is created in the laboratory, and it moves at a speed of 0.962c. Calculate what is the dilated lifetime
An electron is moving such that its de Broglie wavelength equals the Compton wavelength. How fast is it moving, expressed as a fraction of the speed of light c?
Three point charges, q1, q2, and q3, lie along the x-axis at x = 0.0 cm, x = 3.0 cm, and x = 5.0 cm, respectively. Calculate the electric force on q2
the projection lens in a certain slide projector is a single thin lens. a slide 24.5 mm high is to be projected so that
A 2.25kg mass is attached to a spring and placed on a horizontal, smooth surface. A horizontal force of 20.6N is required to hold the mass at rest when it is pulled 0.215m from its equilibrium position, Calculate the total energy of the oscillating..
A camper hangs a 26 kg pack between twotrees, using two separate pieces of rope of different lengths. It hangs from one at 71degrees on theleft and from the one on the right side 28degrees. What is the tension in each rope?
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