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Two boxes of masses m1 = 20.0 kg and m2=40.0 kg are connected by a rope through a pulley that has a uniform wheel of mass M=10.0 kg. Find the magnitude of the acceleration of the boxes.
An 8m, 200 N uniform ladder rests against a smooth wall. The coefficient of static friction between the ladder and the ground is 0.55, and ladder makes a 50.0° angle with the ground. How far up the ladder can an 800 N person climb before the ladde..
Compare the kinetic energy of car travelling. Compare the kinetic energy of an 900 kg car travelling at 30 m/s, and a 1,800 kg car at the same speed.
An eagle is flying horizontally at 7.8 m/s with a fish in its claws. It accidentally drops the fish, How much time passes before the fish's speed doubles
A 10 resistor, 10 mH inductor, and a 110.0 µF capacitor are connected in series to a 50.0 V (rms) source having variable frequency. Find out the energy delivered to the circuit during one period if the operating frequency is twice the resonance fr..
What is the acceleration of a 1.00 gram drop of blood in the finger tips at the bottom of the swing? Find out force that the blood vessel must exert on the drop of blood in part (a)
Suppose the second distance d were traveled in the opposite direction; you forgot something and had to return home at the same constant speed as found in part (a). What is the average velocity for this trip.
A pendulum clock that works perfectly on Earth is taken to the Moon. (a) Does it run fast or slow there? (b) If the clock is started at 12:00 midnight, what will it read after one Earth day (24.0 h)? suppose that the free-fall acceleration on the ..
One mole of a monatomic gass initially at 273 K and 1 atm is compressed isothermally (T constant) from volume 22.4 L to 11. 4 L, Find the final pressure and draw a PV diagram, Labeling the initial and final states 1 and 2
A 5.50kg mass traveling at 3.5 m/s on a fricktionless tabled suddenly collides, What will be the maximum compression of the spring after the composite collides into it
The shaft shown below has a solid round cross-section & is supported by bearing at A & B. Find the location of maximum bending stress in the shaft.
The lenses of a particular set of binoculars have a coating with index of refraction n=1.38, and the glass itself has n=1.52. what is the minimum thickness of the coating
An antifreeze solution is made by mixing ethylene glycol (? = 1130 kg/m3) with water. determine the volume percentage of ethylene glycol in the solution
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