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A block of mass M=220kg initially at rest is pushed along the floor by a horizontal force F of unknown value. The force pushes against a friction force with coefficient u=0.25. The block attains a final speed of 27 m/s after a distance of 110m. Determine the applied force F
The plates of a parallel plate capacitor are 'd' mts apart. At t=0 an electron is released at the bottom plate with a velocity v' normal to the plates . The potential of the top plate with respect to the bottom is -Vm Sin(ωt). Find the position of th..
A balloon is rubbed with a wool glove. The two items attract one another with a force of strength 0.6 N, How many electrons were transferred
A 5.00 kg ball, moving to the right at a velocity of +2.00 m/s on afriction less table, collides head-onwith a 7.50 kg ball moving with a velocity of -1.00 m/s. Find the final velocities of the ball if the collision is a) elastic, and b) completel..
at time t 0 a projectile is launched from ground level. at t 2.00 s it is displaced d 57 m horizontally and h 54 m
A 2.8 kilogram balloon is filled with helium (density = 0.179 kg/m3). If the balloon is a sphere with a radius of 5.1 meter, find what is the maximum weight it can lift
Light of two different wavelengths is used in a double-slit experiment. What is the wavelength of the other light
A gas mixture contains 30% CH_4_, 30% C_2_H_4_ and 40% C_2_H_6_ on a molar basis. What is the composition in weight percent
A whistle of frequency 527 Hz moves in a circle of radius 78.4 cm at an angular speed of 13.7 rad/s. What are the lowest frequencies heard by a listener
The density of ice is 917 kg/m3, and the density of sea water is 1025 kg/m3. What is the weight of the heaviest bear that the ice can support without sinking completely beneath the water
A beam of light enters from air (a =1.0) into three layered surface. Each layer has different refractive index. Trace the path of the light beam as it goes through each layer.
A 9.0 V battery and three resistors are all connected in series. What is the potential difference across the third resistor
A 1 ,000-kg car travelling initially with a speed of 20 m/scrashes into the rear end of an 8,000 kg truck moving in the same direction at 15m/s. What is the speed of the entangled mass right after the collision
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