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A 0.170 kilogram and 48.4 centimeter long uniform bar has a small 0.060 kilogram mass glued to its left end and a small 0.150 kilogram mass glued to the other end. You want to balance this system horizontally on a fulcrum placed just under its center of gravity.
Find how far from the left end should the fulcrum be located?
When 3.78 g of nonvolatile solute is dissolved in 300.0 g ofwater, the freezing point depression is 0.646 o C. Calculate the molar mass of the solute
A mass of 59.72 kg is attached to a light string that is wrapped around a cylindrical spool of radius 10 cm and moment of inertia 4.00 kg * m^2. How long does it take to reach the floor
A simple pendulum is swinging back and forth during a small angle, its motion repeating every 1.18 s. How much longer must the pendulum be made in order to increase its period by 0.22s?
A 0.55kg bullfrog is sitting at rest on a level log. How large is the normal force of the log on the bullfrog
At 25°C the vapour pressure of pure pentane is 511 torr and that of hexane is 150. torr. What is the mole fraction of hexane in the vapour that is in equilibrium with this solution
A 120 g trick baseball is thrown at 51 km/h. It explodes in flight into two pieces, with a 50 g piece regular straight ahead at 86 km/h. How much energy do the pieces gain in the explosion.
Moment of inertia Wheel If you lift the front wheel of a poorly maintained bicycle off the ground and then start it spinning at 0.72rev/s, what is the magnitude of the frictional torque
An electron travelling east with velocity 7.0 x10^5 m/s enters the same electric field region as in the previous problem. How far does it go before being turned backward
an l-r-c circuit has an inductance of 0.480 h a capacitance of 2.60times10-5 f and a resistance of r.a what is the
A 2.5-kg particle oscillates on a spring with spring constant 85 N/m. At time t = 1.0s, What are the maximum speed and acceleration of the particle
How much work is done by the motor when the position of the arm is moved from x = 0.200 m to x = 0.750 m? If the work is done in 4.50 s, what is the power of the motor in W
A 14 kilogram box is sliding up a ramp that is elevated at an angle of 15 degree above the horizontal. Evaluate the distance that the box slides along the ramp before coming to a rest
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