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A performer, seated on a trapeze, is swinging back and forth with aperiod of 9.50 s. If she stands up, thusraising the center of mass of the system trapeze +performer by 43.0 cm, what will be the new period of the trapeze? Treat trapeze +performer as a simple pendulum.
s
a 4.6 kg dog stands on a 20 kg flatboat at distance D = 6.1 m from the shore. It walks 2.2 m along the boat toward shore and then stops. find how far the dog is then from the shore
Using the elbow joint as the axis of rotation, determine the magnitude of the net torque acting about the elbow due to the forearm, hand, and ball
two charges are placed between the plates of a parallel plate capacitor. one charge is q1 and the other is q2 4.66c.
One end of a horizontal spring (k = 66.1 N/m) is held fixed while an external force is applied to the free end, stretching it slowly from xA = 0 to xB = 3.50 cm. Find the work done by the applied force on the spring
Water (density 1000 kg/m^3) is flowing in a pipeline. At point 1 the water velocity is 5.0 m/s. Point 2 is 3.5 m above point 1. The cross sectional area of the pipe is .060 m^2 at point 1 and .020 m^2 at point 2. What is the Pressure difference P1-P2..
a 300-kg load is hung on a wire of length 5.00 m cross-sectional area 0.200 times 10-4 m2 and youngs modulus 8.00 times
Two spaceships approach each other, each moving with the same speed as measured by an observer on the Earth. find the speed of each spaceship as measured on Earth
Where can a third charge be placed. To what common temperature must the two pieces be heated in order that the cylinder just fit over the piston.
A 2.5 mm diameter copper wire carries a current of 33 A, uniformly distributed across its cross-section. Determine the magnetic field at the surface of the wire
In the ammonia (NH3) molecule of Figure 9-39, three hydrogen (H) atoms form an equilateral triangle, with the center of the triangle at distance d = 9.40 ×10-11 m from each hydrogen atom. The nitrogen (N)atom is at the apex of a pyramid, with the t..
The plate separation of a charged capacitor is 0.0690 m. A proton and an electron are releasedfrom rest at the midpoint between the plates. Ignore the attractionbetween the two particles, and determine how far the proton hastraveled by the time the e..
Outline what you know about the electronic structure of graphene and outline two methods to make carbon nanotubes
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