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A simple pendulum consists of a ball of mass M = 4.5 kg hanging from a uniform string of mass m = 0.6 g and unknown length L. The pendulum is located in gravitational field g = 9.8 m/s2 and has period T = 2 s. For simplicity, ignore the string’s weight compared to the ball’s weight. Likewise, ignore the ball’s radius compared to the string’s length. Find the required length of the string to double the period of the pendulum.
A small circular object with mass m and radius r has a moment of inertia given by I = cmr2. To what maximum height will it rise after leaving the ramp
The temperature of 1.5 kg of ethanol is 37c. What would the final temperature be if 80 000J of energy as heat is added to the ethanol.
A 750kg research submarine lies at the bottom of a lake. Its volume is 3.1*10^5cm^3. How much force is needed to lift it by a cable
Refer to Interactive Solution 19.25 to review one way in which this problem can be solved, What is the distance of closest approach
A 15.5kg object moving in the +x direction at 7.0m/s collides head-on with a 11.0kg object moving in the -x direction at 6.0m/s, Find the final velocity of each mass if the objects stick together
the position of an object moving in a straight line is given by x= 5+3.0t - 40t^2 -20t^3, where x is in meters and t in seconds. a)What is the position of the object at t=1,2,3 and 4 s
A charge of 3.0 micro coulombs and a second charge are initially far apart. If it takes 29 J of work to bring them to a final configuration in which the 3.0 micro coulombs is at x = 1.0 mm,
suppose a large crate of 300kg is hung from a uniform steel beam of mass 100kg and 2 meters in length. what would be he initial angular acceleration of the beam
An archer pulls his bow string back 0.440 m by exerting a force that increases uniformly from zero to 224 N. What is the equivalent spring constant of the bow
Find out the maximum distance d (along the ladder) that the monkey can climb up the ladder before rope breaks.
A 0.810 kg particle has a speed of 2.60 m/s at point A and kinetic energy of 8.80 J at B. What is its speed at B? reply in units of m/s.
The terminal voltage of a certain battery is measured with the battery disconnected and is found to be 6.30 V. Find the voltage across the battery terminals
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