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A rigid massless rod is rotated about one end in a horizontal circle. There is a particle of mass m1 attached to the center of the rod and a particle of mass m2 attached to the outer end of the rod. The inner section of the rod sustains a tension that is 4 times as great as the tension that the outer section sustains. Find the ratio m1/m2.
An object with a height of 42 cm is placed 2.3 m in front of a convex mirror with a focal length of -0.40 m. Find the location and magnification of the image
A tank with a volume of 0.150 m contains 27.0 degrees celcius helium gas at a pressure of 100 atm. How various balloons can be blown up if each filled balloon so a sphere 30.0 cm in diameter at 27.0 and absolute pressure of 1.20atm .
A fisherman notices that his boat is moving up and down periodically without any horizontal motion, owing to waves on the surface of the water. What is the amplitude of each wave
Visitors at a science museum are invited to sit in a chair to the right of a full-length diverging lens (f1 = -2.94 m), Find the overall magnification of the friend when viewed through both lenses
Two 4.2 cm X 4.2cm metal plates are separated by a 0.19mm thick piece of Teflon. What is the capacitance? What is the maximum potential difference between the disks?
A horizontal wire carries a current I 1=80 A. A secondwire is suspended parallel to it. If the second wire carries 20 Aand has a mass per unit length of 0.2 g/m,
A 3.02 kg block located on a horizontal frictionless floor is pulled by a cord that exerts a force F=14.3 N at an angle θ= 15.5° above the horizontal, as shown.
A soccer ball is kicked from the ground by an initial speed of 19.5 m/s at an upward angle of 45 degrees. A player 55m away in the direction of the kick start running to meet the ball at that instant. What should be his average speed if he is to meet..
A 1130 kg car traveling initially with a speed of 25.60 m/s in an easterly direction crashes into the back of a 9 550 kg truck moving in the same direction at 20.0 m/s. What was the velocity of the truck right after the collision
Find the pressure, volume, and temperature of the gas in state 2. Find the pressure, volume, and temperature of the gas in state 3. How many moles of gas are there?
While running, a person dissipates about 0.60 J of mechanical energy per step per kilogram of body mass. How fast is the person running
an ac generator supplies an rms voltage of 110 v at 60.0 hz. it is connected in series with a 0.650 h inductor a 5.40
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