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A 2-kg collar which can slide on a frictionless vertical rod is acted upon by a force P which varies in magnitude as shown. Knowing that the collar is initially at rest, determine
(a) The maximum velocity of the collar,
(b) The time when the velocity iszero.
What is the acceleration in m/s of a 0.001kg bullet if the force of recoil gives an acceleration of 4.390 m/s? The gun has mass of 0.20 kg.
A solid block is attached to a spring scale. When the block is suspended in air, the scale reads 22.2N ; when it is completely immersed in water, What is the volume of the block
A fire helicopter carries a 649 kg bucket of water at the end of a 18.7 m long cable. Flying back from a fire at a constant speed of 44.2 m/s, Determine the force of air resistance on the bucket
A 3.2-cm-diameter parallel-plate capacitor has a 2.2mm spacing. The electric field strength inside the capacitor is 1.5 × 105 V/m. What is the potential difference across the capacitor
Two newly discovered planets follow circular orbits around a star in a distant part of the galaxy. What is the orbital period of the faster planet
A child, hunting for her favourite horse, is running on the ground around the edge of a stationary merry-go-round. The angular speed of the girl has a constant value of .250 rad/sec.
an uncharged capacitor is connected to the terminals of a 4.0 v battery and 12 mc flows to the positive plate. the 4.0
When white light is incident on asheet of transparent material, it is found that the emerging lightis red, What is the work function of the material
A circuit similar to the one you will b e measuring has a current of 0.1 A flowing when the voltage is 2. 5 V, What color code does the res istor probably have
what is the maximum equivalent capacitance that can be obtained by combination of three capacitors of 1.5 microf 2.1
Two long, parallel wires separated by 4.50 cm carry currents in opposite directions. The current in one wire is 1.65 A, and the current in the other is 3.45 A. Find the magnitude of the force
Why is a physical model different from the one needed for conductors needed to determine the conditions of quantum confinement for semiconductors
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