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A bicycle wheel has an initial angular velocity of 1.90rad/s .
A) If its angular acceleration is constant and equal to 0.285rad/s2, what is its angular velocity at time t = 2.65s?
B) Through what angle has the wheel turned between time t=0 and time t = 2.65s?
The three air carts shown in figure 9-16 have masses,reading fromleft to right, of 4m,2m,and m,respectively.The most massive carthas an initial speed of V0 ; the other twocarts are at rest initially.
A dinoflagellate takes 4.9 s to travel 0.5 mm. Approximate a dinoflagellate as a sphere of radius 35.0 µm (ignoring the flagellum). What is the power output of the flagellate
A wire lying along a y axis from y = 0 to y = 0.276 m carries a current of 1.62 mA in the negative direction of the axis. The wire fully lies in a nonuniform magnetic field given by = (0.466 T/m)y + (0.293 T/m)y. What is z components of the magnetic ..
The temperature of a gold bar rises by 10°C when it absorbs 0.677 kJ of energy by heat. The mass of the bar is 525 gram. Obtain the specific heat of gold from these data
a physicist out at the cabin uses a sonar device to determine the speed of a jet-ski on the nearby pond. a 20.5 khz
four objects are situated along the y axis as follows a 2.08 kg object is at 3.40 m a 2.72 kg object is at 2.32 m a
Three identical stars of mass M = 1.9 x1030 kg form an equilateral triangle that rotates around the triangle's center as the stars move in a common circle about that center. The triangle has edge length L = 7.1 x1010 m. What is the speed of the st..
A copper cable is designed to carry a current of 340 A with a power loss of 4.80 W/m. What is the required radius of this cable
A 131kg astronaut (including space suit) acquires a speed of 2.32m/s by pushing off with her legs from an 1760kg space capsule. What is the change in speed of the space capsule
Polonium-210 decays to the ground state of Lead-206 by the emission of a 5.305-MeV alpha-particle with a half-life of 138 days. What mass of Polonium-210 is needed to produce 1 MW of thermal energy from its radioactive decay?
an electron moves at a speed of 60.0 ms directly toward a stationary electron when the two electrons are 1.00 m apart.
A scaffold of mass 60 kg and length 6.5 m is supported in a horizontal position by a vertical cable at each end. What is the tension in the cable closer to the painter
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