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A merry-go-round starts from rest and accelerates uniformly over 27.0 s to a final angular velocity of 7.75 rev/min.
(a) Find the maximum linear speed of a person sitting on the merry-go-round 7.25 m from the center.
(b) Find the person's maximum radial acceleration.
(c) Find the angular acceleration of the merry-go-round.
(d) Find the person's tangential acceleration.
A child on a boat throws a 5.40 kg package out horizontally with a speed of 12.0 m/s. determine the velocity of the boat immediately after, assuming it was initially at rest. The mass of the child is 26.5 kg and the mass of boat is 55.5 kg.
A boy pulls a 5.0 Kg sled 10.0 m along a horizontal surface at a constant speed. what work does he do pulling the sled
A 0.70-m-diameter solid sphere can be rotated about an axis through its center by a torque of 12.8m?N which accelerates it uniformly from rest through a total of 170 revolutions in 14.0s
A 12 kg object oscillates at the end of a vertical spring that has a spring constant of 1.70 x10^4 N/m. The effect of air resistance is represented by the damping coefficient b = 3N•s/m. Find the time interval that elapses while the energy of the ..
Sound enters the ear, travels through the auditory canal, and reaches the eardrum. The auditory canal is approximately a tube open at only one end. The other end is closed by the eardrum. A typical length for the auditory canal in an adult is abou..
The maximum current an ac device draws is 1.80 A when connected to a 120 V outlet. What is the effective current of the device
you need to store 25J of energy in the magnetic field of a solenoid. The solenoid hass 100 circular turns of diameter 5.0cm, What is the energy density inside the solenoid
The radius of Venus's orbit is 0.72 times that of Earth's orbit. How much stronger is the Sun's gravitational field at Venus than at the earth.
For a hydrogen atom, determine the ratio of the ionization energy for the n = 4 excited state to the ionization energy for the ground state
Earth's radius is 6.38 × 106 m, and it completes one revolution every day. What is the tangential speed of a person standing on the equator
A child slides across a floor in a pair of rubber-soled shoes. Thefriction force acting on each foot is 20.0 N. The footprint area ofeach shoe sole is 14 cm2, and the thickness of eachsole is 5 mm. Find the horizontal distance by which the upper a..
A heavy sled is being pulled by two people as shown in the figure. The coefficient of static friction between the sled and the ground is ?s = 0.595, what is the sled\'s acceleration
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