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Problem 1 The 2-kg slider A is pushed along the curved bar by the slotted bar. The curved bar lies in the horizontal plane, and its profile is described by r = (0/7c + 1.5), where 0 is in radians and r is in meters. The angular position of the slotted bar is 8 = 3t rad. Determine the polar components of the total external force exerted on the slider when 8 = 60°.
Problem 2 In Problem 1, suppose that the curved bar lies in the vertical plane and that the weight is an unknown value W. Determine the polar coordinates of the total force exerted on A by the curved and slotted bars in terms of time t and weight W.
The Millenium Falcon is chased by the Imperial Forces. The ship is moving at a speed of 0.615 c. What is the velocity of the protons in the resting frame when the cannon is shot in the backward direction
question a 65-kg person jumps from a window to a fire net 18m below which stretches the net 1.1m. assume that the net
A charge of 0.43 C is spread uniformly throughout a 36 cm rod of radius 7 mm. What are the volume and linear charge densities
A 2.0kg wood block is launched up a wooden ramp that is inclined at a 27? angle. What speed does it have when it slides back down to its starting point
An archer, about to shoot an arrow, is applying a force of +240 Nto a drawn bowstring. What is the displacement ofthe bow string
a gymnast with mass m1 46 kg is on a balance beam that sits on but is not attached to two supports. the beam has a mass
Draw free body diagrams for a car cruising at a constant velocity (a) on a level road and (b) on a uphill road? Include gravity, the normal, drag, and tire friction forces. What to the vectors sum to?
A spring oscillator is designed with a mass of 0.291 kg. It operates while immersed in a damping fluid, Find the required damping constant for the system
An object is dropped from rest from a height of 3.74E+6 m above the surface of the earth. If there is no air resistance, what is its speed when it strikes the earth
Consider the expansion of 60.0 moles of a monatomic ideal gas along processes 1 and 2 in the figure below. In process 1 the gas is heated at constant volume from an initial pressure of Pi = 95 kPa to a final pressure of Pf = 190 kPa. In process 2 ..
A projectile of mass 0.868 kg is shot straight up with an initialspeed of 28.6 m/s. (a) How high would it go ifthere were no air resistance? (b) If theprojectile rises to a maximum height of only 7.53 m, determine themagnitude of the average force du..
A wheel rotates with a fix angular acceleration of 3.80 rad/s^2. Determine the angle in which the speed rotates between t=2.00 sec and t=3.60 sec
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