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A 3.9×10-24-kg particle is vibrating with simple harmonic motion with a period of 1.8×10-5 s and a maximum speed of 1.70×103 m/s.
a) Calculate the angular frequency.
b) Find the maximum displacement of the particle.
To keep a door closed, a wooden stick is wedged between the floor and the doorknob. The stick exerts at B a 45-lb force directed along line AB. Swap that force with an equivalent force-couple system at C.
What would be the time constant in a RC circuit when R = 200 kohms and C = 10mf? 20
a 2kg mass ona horizontal frictionless surface is attached to the free end of an ideal spring of stiffness k=30N/m. by what distance is the spring compressed as the mass comes to rest again
A motor is designed to operate on 117 V and draws a current of 15.0 A when it first starts up. determine the resistance of the armature coil
A 6.2-m radius playground merry-go-round with a moment of inertia of 2400 kg·m2 is rotating freely with an angular speed of 1.5 rad/s. What is the angular speed of the merry-go-round right after the two people have stepped on
How much work is done by the horizontal force F_p = 150 N on the 18 kg block of the figure when the force pushes the block 5.5 m up along the 32 degree frictionless incline
A 7.8 cm diameter wire coil is initially oriented so that its plane is perpendicular to a magnetic field of 0.63 T pointing up. What is the average induced emf in the coil
A basketball of mass 3 kg and radius 0.20 m rolls without slipping down an incline of angle 30 degrees. Calculate the acceleration of the center of mass
In a serious accident, a nuclear power plant%u2019s reactor vessel cracks, and all of the cooling water drains out. how much energy will it take to melt the core
State the direction as an angle with respect to the +x axis.
A "railgun" accelerates a projectile using an electric current circulating through two parallel rails and the projectile itself. What is the impulse on the projectile
Determine the specific heat capacity of an unknown sample of metal.
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