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A meter stick is balanced on a fulcrum at its center. Then a 3 N weight is places 82 cm to the left of center. How many cm to the right of center would a 17 N weight need to be placed in order to balance the system?
Bifocal glasses are used to correct both nearsightedness and farsightedness at the same time. If the near points in the right and left eyes are 60.0 cm and 50.0 cm, respectively, and the far point is 175 cm for both eyes, what are the powers of th..
The atomic mass of copper is 64 g/mole, and the density of copper is 8.9 g/cm3.
In the series RLC circuit of problem 1 the resistor is replaced with the higher available value of 68 KOhm. The circuit is driven in forced oscillation regime up to a frequency of 200 KHz. A resonance is observed at a frequency of the order of 160..
A molecule of DNA (deoxyribonucleic acid) is 2.22 µm long. The ends of the molecule become singly ionized: negative on one end, positive on the other. Find the effective spring constant of the molecule
If the ac peak voltage across a 100-ohm resistor is 120 V, then what is the value of average power dissipated by the resistor
A box of unknown mass begins at the base of a 30 degree ramp with an initial velocity of 10.0 m/s. calculate the maximum distance up the ramp which the box will reach
A 2.1 kilogram mass is connected to a spring with spring constant k = 150N/m and unscratched length 18 centimeter. Evaluate what the radius of its path
A heat pump has a coefficient of performance of 3.75 and operates with a power consumption of 7.13 103 W. How much energy does it deliver into a home during 24 h of continuous operation? How much energy does it extract from the outside air?
A container of volume V is divided by partitions into three parts containing one kilomole of helium gas, Calculate the kilomole fraction
An earth satellite moves in a circular orbit with an orbital speed of 5800m/s. Find the radial acceleration of the satellite in its orbit
A moving particle encounters an external electric field thatdecreases its kinetic energy from 8920 eVto 7400 eV as the particle moves fromposition A to position B. The electric potentialat A is -52.0 V, and the electricpotential at B is +26.9 V.
Atmospheric pressure is about 1.0 105 Pa on average. What is the downward force of the air on a desktop with surface area 0.1 m2
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