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A pendulum consists of a 2.0 kg stone swinging on a 3.9 m string of negligible mass. The stone has a speed of 7.2 m/s when it passes its lowest point. a) What is the speed when the string is at 60° to the vertical? (in m/s) b) What is the greatest angle with the vertical that the string will reach during the stone's motion? c) If the potential energy of the pendulum-Earth system is taken to be zero at the stone's lowest point, what is the total mechanical energy of the system? (in Joules)
A friend of yours who starts out at the same age as you travels to the alpha centauri solar system which is 5.20 light-years away. How much older than your friend are you now
A hollow spherical shell (radius R) carries a surface potential V(r=R, teta, Phil) = kcos(Squared) teta, sine teta. Find the potential inside and outside of the cylinder, explicitly evaluating the first four nonzero coefficients in each case.
Determine the magnitude of the force between two point charges, Q1 = -2e located at (-3.60 cm, +4.10 cm) and Q2 = -8e located at (-0.60 cm, -8.60 cm).
A gas, while expanding under isobaric conditions, does 494 J of work. The pressure of the gas is 1.57E+5 Pa, What is the final volume of the gas
the rubber worn from tires mostly enters the atmosphere as particulate pollution. estimate how much rubber in kg is put
The heels on a pair of women's shoes have radii of 0.42cm at the bottom. If 32 percent of the weight of a woman weighing 580N is supported by each heel, find the stress on each heel.
two electric charges q1 18.8 nc and q2 10.8 nc are located on the x-axis at x 0 m and x 1.00 m respectively. what
The coefficient of static friction between m1 and the horizontal surface is 0.60 while the coefficient of kinetic friction is 0.30. what will be the acceleration of the system
A shopper in a supermarket pushes a cart with a force of 33 N directed at an angle of 25° below the horizontal. Find the work done by the shopper as she moves down a 44 m length aisle
The same voltage is applied between the plates of two different capacitors. When used with capacitor A, this voltage causes the capacitor to store 12 C of charge and 6.1 x10-5 J of energy.
A bicycle wheel of radius 0.6 m is spinning at a rate of 120 revolutions per minute. What is the period of the wheel's motion
A 3730.-nF parallel plate capacitor is connected to a 21.4-V battery and charged. What is the charge Q on the positive plate of the capacitor? How much of the electrical energy stored in the 3730.-nF capacitor was transferred to the other three capac..
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