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The 4-lb uniform rod AB Problems is attached to collars of negligible mass which may slide without friction along the fixed rods shown. Rod AB is at rest in the position θ = 25° when a horizontal force P is applied to collar A, causing it to start moving to the left with an acceleration of 12 ft/s2 . Determine
(a) the force P,
(b) the reaction at B.
Find the Newton polynomial approximation for f(x)=arctan(x) on the interval[2,2] Investigate which polynomial order is more sufficient for an accurate representation of the above function. Show all your attempts please I dont Understand it
A solenoid contains 750coils of very thin wire evenly wrapped over a length of 15.0 cm. If this solenoid carries a current of 7.35A , what is the magnetic field at its center?
The velocity of the transverse waves produced by an earthquake is 4.94 km/s, while that of the longitudinal waves is 8.8426 km/s. How far away was the earthquake
This week's Seminar will also focus on the following scenario: You woke up this morning with a pain in your lower left abdomen, located next to your belly button. As the day has progressed the pain is getting worse. You decide to take yourself to ..
A man holds a double-sided spherical mirror so that he is looking directly into its convex surface, 40.8 cm from his face. The magnification of the image of his face is +0.21. What will be the image distance when he reverses the mirror (looking in..
The orbit of Halley's Comet around the Sun is a long thin ellipse. What is the comet's speed at its perihelion (closest approach to the Sun) where its distance from the Sun is 8.58×1010 m
A proton moving at 7.6 × 106 m/s through a magnetic ?eld of 8.8 T experiences a magnetic force of magnitude 2.5 × 10?12 N. What is the angle between the proton's velocity and the field
Determine the temperature of the universe when it had cooled enough that photons no longer disassoci- ate the hydrogen atom. Use the mean value of the distribution.
A 15g bullut is stopped in a block of wood ( mw=5.8 kg). What was the origional speed of the bullet
Suppose that 0.0025 m^3 of gas in a cylinder is compressed by a piston down to 0.001 m^3 while 675 J of heat flows out of the gas. what was the change in its internal energy
q1. a rocket-powered sled starts from rest on a frozen lake that is 8 miles across. the sled then accelerates at 20 fts
A person on earth notices a rocket approaching from the right at a speed of 0.78c and another rocket approaching from the left at 0.58c. What is the relative speed between the two rockets, as measured by a passenger on one of them?
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