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A square plate with sides 1.5 m in length can rotate around an axle passing through its center of mass (CM) and perpendicular to its surface (see figure below). There are four forces acting on the plate at different points. The rotational inertia of the plate is 21 kg.m2.Use the values given in the figure to answer the following questions. (Assume θ = 41o. Express your answers in vector form.)
(a) What is the net torque acting on the plate?
(b) What is the angular acceleration of the plate?
a setup similar to the one shown in the figure below is often used in hospitals to support and apply a horizontal
A tourist being chased by an angry bear is running in a straight line toward his car at a speed of 5.47 m/s. The car is a distance d away, What is the maximum possible value for d
In Fig. 15-53, three 18000 kg ore cars are held at rest on amine railway using a cable that is parallel to the rails, which areinclined at angle θ = 34°. The cable stretches 21 cm justbefore the coupling between the two lower cars breaks, detachin..
A 191g oscillator has a speed of 96.50cm/s when its displacement is 2.70cm, What is the oscillators maximum speed
A major league pitcher can throw a baseball in excess of 41 m/s. If a ball is thrown horizontally at this speed, how much will it drop by time it reaches a catcher who is 17m away from the point of release.
What is VL,max, the magnitude of the maximum voltage across the inductor? What is VL = Vb - Vc, the voltage across the inductor, at time t = 0? Note that VL is a signed number.
The wavelength of red helium–neon laser light in air is 632.8 nm. What is its frequency? What is its speed in the glass?
A ball of mass 50g tied to the end of a 50cm inextensible string is whirled around in a vertical circle. Find the tension in the string when the ball is at the top of the circle. Take g=10ms2.
Calculate the initial velocity for each using the average time of fligh up, the acceleration of gravity and the initial velocity. The average time up for A is 3.18s and for B is 1.87s and using the formula t=Vo Sin(θ)/g.
A red laser emits photons with a wavelength of 635 nm. If this laser has a power of 23 W, how many photons does it emit in 1 s? If the light emitted by the laser is absorbed with a black sail, what is the force on the sail?
Two cars travel in the same direction along a straight highway, one at a constant speed of 55.0 mi/h and the other at 70.0 mi/h. Assume the cars start at the same point and arrive at the same destination which is 10.0 miles away. Sketch a position..
A very long solenoid with a circular cross section and radius r= 8.1cm with n= 1.90E+4 turns/m has a magnetic energy density uB= 5.70 mJ/m3. What is the current in solenoid.
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