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On the planet Newtonia, a simple pendulum having a bob with a mass of 1.25KG and a length of 188.4CM takes 1.55S, when released from rest, to swing through an angle of 11.6degrees, where it again has zero speed. The circumference of Newtonia is measured to be 5.15×10^4km. What is the mass of the planet Newtonia?
Illustrates the difference between acceleration and velocity
A simple pendulum makes 137 complete oscillations in 3.20 min at a location where g = 9.80 m/s2. Find the period of the pendulum.
A sample of an unknown material appears to weigh 280 N in air and 180 N when immersed in alcohol of specific gravity 0.700. What is the density of the material
5 kg of water at 60 degrees are put in contact with 1 kg of ice at 0 degrees and are thermally isolated from everything else. What is the change in entropy of the universe while the ice melts
A force acting on an object moving along the x axis is given by Fx = (14x ? 3.0x2) N, How much work is done by this force as the object moves from x = ?2.0 m to x = +1.0 m
A certain superconducting magnet in the form of a solenoid of length 0.520 m can generate a magnetic field of 9.10 T in its core when its coils carry a current of 80 A
Assume that, when Hiawatha aims vertically, his arrow reaches a maximum height of 20 m. Use this fact to find the initial speed u with which Hiawatha can launch the arrow vertically.
a 2.0 nc charge is placed on the x-axis at x=-3.0cm another 2.0nc charge is placed on the x-axis at x=3.0cm, What is the potential at the origin
A particular ideal solenoid has 1200 turns/m, a radius of 10 cm, and a current of 4.0 A. What is the maximum speed the electron can have if it is not run into the side of the solenoid
What is the bubble's diameter just as it reaches the surface of the lake, where the water temperature is 20 ^circC? Suppose that the air bubble is always in thermal equilibrium with the surrounding water.
A 50 kg woman stands on the back of a 6 m long, 125 kg raft that is floating at rest in still water with no friction. The raft is 0.50 m from a fixed pier.
A series RLC circuit consists of a 96.0 ? resistor, a 7.00 mHinductor, and a 1.40 nF capacitor. What is the power supplied to the circuit if ? =1/2?0
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