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The angular acceleration of a wheel, as a function of time is a = 5.0 t^2 - 8.5 t, where a is in rad/s^2 and t in seconds. If the wheel starts from rest (θ = 0, ω = 0, at t = 0), determine a formula for (a) the angular velocity ω and (b) the angular position θ, both as a function of time. (c) Evaluate ω and θ at t = 2.0 s.
Wile E. Coyote and the Roadrunner are fictional cartoon characters. The premise of the cartoon is that Wile E. What is the magnitude of the impulse on the second wagon
A father racing his son has 1/3 the kinetic energy of the son, who has 1/3 the mass of the father. The father speeds up by 1.5 m/s and then has the same kinetic energy as the son.
A smaller 18 kg box is held up against a larger 52 kg box as shown. The coefficients of friction are Mu s = 0.54 and Mu k = 0.22 between the two boxes. There is no friction on the floor! Thus the big box will begin to slide as soon as it is pushed..
a boy on a skateboard coasts along at 6.0 ms. he has a ball that he can throw at a speed of 10 ms.1 what is the balls
What is the electric potential 3.0×10^?11 from a proton (charge +e)? Let V=0 at r=infinity. What is the potential energy of an electron at this point
A bronze cannon ball with a mass of 3.5 kg is fired vertically from a small cannon and reaches a height of 25.0 m. find the maximum height reached by the cannon ball
A woman is reported to have fallen 139 ft from a building, landing on a metal ventilator box, which she crushed to a depth of 30 in. She suffered only minor injuries.
The simple frame of Figure has pinned joints. Determine its stiffness matrix.
A modern-day zeppelin holds 9,470 m3 of helium. Compute its maximum payload at sea level. (Assume the helium and air to be at 0°C and 1 atm.)
what uniform magnetic field applied perpendicular to a beam of electrons moving at 3.59 x 106 ms is required to make
why are plots made of current versus voltage? wouldnt it make more sense to have the axes reversed so that the slope
A current I = 15 amp is directed along the positive x-axis in a wire, which lies perpendicular to a uniform magnetic field. The current carrying wire experiences a force per unit length of 63 N/m in the negative y direction. Decide the magnitude and ..
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