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A moving 4.30 kg block collides with a horizontal spring whose spring constant is 346 N/m. The block compresses the spring a maximum distance of 13.00 cm from its rest position. The coefficient of kinetic friction between the block and the horizontal surface is 0.100. What is the work done by the spring in bringing the block to rest? How much mechanical energy is being dissipated by the force of friction while the block is being brought to rest by the spring? What is the speed of the block when it hits the spring?
The only two forces acting on a body have magnitudes of 20N and 38N and a directions that differ by 76 degrees. What is the mass of the body
At t=0, a charged particle at the origin has a velocity v along the positive z-axis. It is in the presence of parallel uniform fields E(along the positve x-axis) and B(along the positive x-axis).
A common flashlight bulb is rated at 0.270 A and 3.36 V (the values of current and voltage under operating conditions). estimate the temperature of the tungsten filament when the bulb is turned on
A spring-block system executes simple harmonic motion. The mass of the block is m = 12 kg and the total energy is E = 18 J. The amplitude is A = 0:10 m.
question a 5.00-kg object is initially at rest. the object is acted on by a 9.00-n force toward the east for 3.00 s. no
A rocket is projected upward from the earth's surface (r = RE) with an initial speed v0 that carries it to a distance r = 1.8 RE from the center of the earth. What is the launch speed v0
A 7.0 L volume of ideal neon gas (monatomic) is at a pressure of 4.3 atmospheres and a temperature of 400 K. determine the final pressure of the gas
Three capacitors are connected in series. The equivalent capacitance of this combination is 2.70 ?F. Two of the individual capacitances are 6.70 ?F and 8.30 ?F. What is the third capacitance (in ?F)?
A positive charge of 4.00 ?C is fixed in place. How close to the fixed charge does the particle get before it comes to rest and starts traveling away
Two microscopes are placed one on top of the other. They are in contact at one end but a hair separates them at the other end. determine the thickness of the hair?
a tiny sphere of mass 7.30 microg and charge 2.80 nc is initially at a distance of 1.74 microm from a fixed charge of
A horizontal incident beam consisting of white light passes through an equilateral prism. What is the dispersion (thetaV -thetaR) of the outgoing beam
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