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Two children with masses of 24 and 31 kg are sitting on a balanced seesaw. If the lighter child is sitting 3 m from the center, where is the heavier child sitting?
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Question: A small button placed on a horizontal rotating platform with diameter 0.330m will revolve with the platform when it is brought up to a rotational speed of 45.0 rev/ min. provided the button is a distance no mor ...
Question: A sinusoidal electromagnetic wave having a magnetic field of amplitude 1.25 \mu {\rm T} and a wavelength of 432 {\rm nm} is traveling in the + x direction through empty space. Write the equations for the electr ...
Question: Suppose you wanted to charge an initially uncharged 124 pF capacitor through a 65 Mohm resistor to 90% of its final voltage. How much time (in s) would be required to do this? The response must be typed, single ...
Question: Suppose the free-fall acceleration at some location on earth was exactly 9.8000 m/s^2. What would it be at the top of a 1000 -tall tower at this location? The response must be typed, single spaced, must be in t ...
Question: An object is 6.0 cm in front of a converging lens with a focal length of 10 cm . Part A Use ray tracing to determine the location of the image. Express your answer using two significant figures. The response mu ...
Question: Resistivity measurements on the leaves of corn plants are a good way to assess stress and overall health. The leaf of a corn plant has a resistance of 2.3 MΩ measured between two electrodes placed 20 cm apart ...
Runner A is initially 5.9 km west of a flagpole and is running with a constant velocity of 8.3 km/h due east. Runner B is initially 4.8 km east of the flagpole and is running with a constant velocity of 7.6 km/h due west ...
What are the equations and ratios used in Galileo's experiments, and what theory/principles are associated with his experiments that involve motion on a ramp at different inclines and distances for example?
An observer sees an airplane flying directly overhead and determines that the distance from the wingtip to wingtip subtends and angle of 0.0080 radians. She knows that the wingspan of the airplane is actually 160 feet. W ...
Question: A semicircle of radius a is in the first and second quadrants, with the center of curvature at the origin. Positive charge +Q is distributed uniformly around the left half of the semicircle, and negative charge ...
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