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Q. A 12.00 kg block on a horizontal frictionless surface is attached to a light spring (force constant = 0.80 kN/m). The block is originally at rest at its equilibrium position when a force (magnitude P = 80 N) acting parallel to surface is applied to the block. What is the speed of the block when it is 13cm from its equilibrium position?
Q. A solid cylindrical disk has a radius of 0.10m. It is mounted to an axle that is perpendicular to the circular end of the disk at its center. When a 50-N force is applied tangentially to the disk, perpendicular to the radius, the disk acquires an angular acceleration of 150rad/s2. What is the mass of the disk?
Find the smallest particle size (density 2.65 grams per cubic cm) that will be removed in a horizontal grit chamber 10 meters long and 1.0 meter deep if the flow rate is 1000 cubic meters per hour. Suppose temperature is 25 ºC.
The Mini Cooper is rated at the maximum power of 115. hp (1 hp=746 W), when moving at 80km/h. Suppose that the net force accelerating the car is constant.
A pilot flies an airplane at a constant speed of 520 km/hr in the vertical circle of radius 1400 m. compute the force exerted by the seat on the 105-kg pilot at point A and at point B.
imagine someone drops an apple from a vertical distance.
A particle oscillates with S.H.M. The maximum displacement from its mean position is 0.5 meter and frequency of motion is 10 Hz. at time t=0, particle is located at 0.15 meter and has the velocity of 24.0 m/s towards the negative x-axis.
hear the sound of it hitting ground at the foot of the cliff. Ignoring air resistance, how high is the cliff if the speed of sound is 330 {rm m/s}.
Treating our rigid legged friend as a particle, what is the average force his feet exert on the ground as he slows down.
A proton is located at the origin, and a second proton is located on the x-axis at x=6.00 fm. (a) compute the electric potential energy associated with this configuration.
A parallel plate capacitor has plates of area 2.0*10^3 and plate separation 1.0*10^4m. find the capacitance of this system if air fills the volume between the plates.
A gas expands while 502 J of energy is added to it as heat. The expanding gas does 422 J of work on its surroundings.
What mass (in grams) of steam at 100°C should be mixed with 212 g of ice at its melting point, in a thermally insulated container, to produce liquid water at 14.0°C? The specific heat of water is 4186 J/kg·K. The latent heat of fusion is 333 kJ/kg..
A uniform electric field of magnitude 445 N/C pointing in the positive x-direction acts on an electron, that is initially at rest. The electron has moved 3.10 cm.
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