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A child is riding a merry-go-round which completes one revolution every 8.36 s. The child is standing 4.65 m from the center of the merry-go-round. What is the magnitude of the centripetal acceleration of the child?
A coil has 2.72 ? resistance and 0.405 H inductance. If the current is 4.92 A and is increasing at a rate of 4.42 A/ s, what is the potential difference across the coil at this moment
A magnetic field is directed at a 40.0 angle to a plane circular loop of wire with a radius of 26.8 cm. a) draw a diagram showing the wire loop, what is the induced emf in the wire loop
The ball curves because it is spinning at an average angular velocity of 370 rev/min (assumed constant) on its way to the catcher's mitt. Illustrate what is the angular displacement of the baseball (in radians) as it travels from the pitcher to t..
The carbon monoxide molecule (CO) consists of a carbon atom and an oxygen atom separated by a distance of 1.13 x 10-3m. Determine the location of the center of mass of this molecule relative to the carbon atom
The back wall of an auditorium is 31.0 m from the stage. If you are seated inthe middle row, how much time elapses between a sound from the stage reaching your ear directly and the same sound reaching your ear after reflecting from the back wall?
In a high-energy collision among a cosmic-ray particle and a particle near the top of Earth's atmosphere, 128 km above sea level, a pion is created. The pion has a total energy E of 1.81 x105 MeV and is traveling vertically downward.
A student presses a book between his hands, as the drawing indicates. The forces that he exerts on the front and back covers of the book are vertical to the book and are horizontal.
A 12.0V dc battery having no appreciable internal resistance, a 146.5? resistor, an 10.6mH inductor, and an open switch are all connected in series. After the switch is closed, what is the maximum energy stored in the inductor
find the radius of curvature of the vertical profile of the road at A. Using value of the curvature found, determine the force exerted on a 160-lb driver by the seat of his 3100-lb car as the car, traveling at a constant speed of 50 mi/h, passes t..
a a 3 microcoulomb charge is at the coordinates 34 mm. a -4 microcoulomb charge is at the coordinates -25mm. what is
a cessna aircraft has a lift-off speed of 120 kmh.a what minimum constant acceleration does this require if the
The coil of a galvanometer has a resistance of 19.8 ?, and its meter deflects full scale when a current of 6.30 mA passes through it. What is the maximum current that this ammeter can read
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