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A performer, seated on a trapeze, is swinging back and forth with a period of 8.10 sec. If she stands up, thus raising the center of mass of the trapeze + performer system by 29.0 centimeter, find the new period of the system (in seconds)? Treat trapeze + performer as a simple pendulum.
Starting from rest, a basketball rolls from the top to the bottom of a hill, reaching a translational speed of 7.5 m/s. Ignore frictional losses. (a) What is the height of the hill? (b) Released from rest at the same height, a can of frozen juice rol..
a 9.5-kg monkey is hanging by one arm from a branch and is swinging on a vertical circle. as an approximation assume a
The power P of an Electric circuit varies jointly with resistance , R and with the square of the current, I. find the power if the current is 2.00 A and the resistance is 2.00 ohms
What must the separation be between a 6.7 kg particle and a 2.9 kg particle for their gravitational attraction to have a magnitude of 4.1 × 10-12 N
A cube of side 15 cm floats at the surface between waterand oil. The oil has a density of 810 kg/m3. what is the buoyant force on the cube
A train has 4 locomotives (73 tons each) and 60 coal cars (42 tons each). The train is going down a 2.4% incline, What is the mass of the entire train
A physical pendulum is constructed using a 2 kg object having a moment of inertia of 25.9 kg-m2 about its center of mass. The rotation (suspension) point is 970.5 cm from the center of mass. What is the period of this physical pendulum?
A concave mirror (R = 64 cm) is used to project a transparent slide onto a wall. The slide is located at a distance of 40.0 cm from the mirror, How far from the wall should the mirror be located
What is an average speed
a 280 kg log is pulled up a ramp by means of a rope that is parallel to the surface of the ramp. the ramp is inclined
a light ray is travelling in air is incident on one face of a right angle prism with index of refraction n1.5 and the
A 2 ?C negative charge is attracted to a large, well-anchored, positive charge. How much kinetic energy does the negatively charged object gain
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