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The lever BCD is hinged at C and is attached to a control rod at B. Determine the maximum force P which can be safely applied at D if the maximum allowable value of the reaction at C is 500 N.
A 56.0 g sample of a conducting material is all that is available. The resistivity of the material is measured to be 1.22×10-7 ?m, What will be the diameter of the wire
A hockey puck moving along the +x axis at 0.42 meter per second collides into another puck that is at rest. The pucks have identical mass. Obtain the speed and direction of the second puck after the collision
A 2.50-kg ball, moving to the right at a velocity of +3.83 m/s on a frictionless table, collides head-on with a stationary 8.10-kg ball. Find the final velocities of (a) the 2.50-kg ball and of (b) the 8.10-kg ball if the collision is elastic. (c) Fi..
A 2 cm diameter, 5 cm long capillary-tube viscometer is being used to measure viscosity of a 10 Pa s liquid food. Determine the pressure required for measurementhen a flow rate of 1 kg/min
A 1200kg truck is accelerating uniformly from rest to 20.0m/s east while travelling 30.0m east across the level ground. The coefficient of friction between the tires and the road is 0.45. How much work was done during Acceleration? What is the accele..
A spaceship of mass 2.30×106kgis cruising at a speed of 4.70×106m/swhen the antimatter reactor fails, blowing the ship into three pieces. One section, having a mass of 5.10×105kg, is blown straight backward with a speed of 2.40×106m/s. A second piece..
A physical pendulum is composed of a 1.4 m rod with mass mr = 0.5 kg and a solid sphere with mass ms = 2.0 kg, What is the angular frequency of the oscillation
What magnitude of charge must be given to the drop
The wave function y(x, t) for a certain standing wave on a string fixed at both ends is given by y(x, t) = 3.70 sin (0.220x) cos (270t), What is the speed of transverse waves on this string
A charged particle moves in a uniform magnetic field of 0.817 T with a period of 2.13 × 10-6 s. Find its charge-to-mass ratio.
The work function for cesium, 1.81 eV, is much lower than the work function for other metals. What is the photoelectric cut-off wavelength? What is the maximum electron kinetic energy when cesium is illuminated with light of 512-nm wavelength?
A monochromatic beam of X-rays with a wavelength of 0.290nm is scattered by a metal foil. what is the observed scattering angle
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