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Question: A typical running track is an oval with 74-m-diameter half circles at each end. A runner going once around the track covers a distance of 400m . Suppose a runner, moving at a constant speed, goes once around the track in 1 min 40s. What is her centripetal acceleration during the turn at each end of the track?
a horizontal wire is hung from the ceiling of a room by two massless strings. the wire has a length of 0.23 m and a
A 5.0-g bullet traveling horizontally at an unknown speed hits and embeds itself in a 0.195-kg block resting on a frictionless table, Determine the initial speed of the bullet
After a tornado, a 0.50g drinking straw was found embedded 4.5cm in a tree. What was the straw's speed when it hit the tree
Four identical point charges of +3.0 µC are located in air at the four corners of a square that is 40 centimeter on a side. Evaluate the force on any one of the charges
An alternating source drives a series RLC circuit with an emf amplitude of 6.07 V, at a phase angle of +33.3°. what is the potential difference across the inductor
A 128 carton is pulled up a frictionless baggage ramp inclined at 30.0 above the horizontal by a rope exerting a 72.60 pull parallel to the ramp's surface. If the carton travels 5.20 along the surface of the ramp, compute the work done on it by the r..
While completing the experiment DC Circuits, make sure to keep the following guiding questions in mind- What is the distinction between series and parallel
An aluminum cup contains 225 g of water and a 40-g copper stirrer, all at 27 °C. A 500-g sample of silver at an initial temperature of 87 °C is placed in the water. Calculate the mass of the aluminum cup
A particle with a charge of -1.5uC and a mass of 2.5x10-6 kg is released from rest at point A and accelerates toward point B, arriving there with a speed of 42 m/s. The only force acting on the particle is the electric force. (a) Which point is at..
Explain how the electric potential energy of a particle can increase
Evaluate what is the magnitude of the acceleration of a modified Atwood machine if the mass of the cart is 3 kilogram and the hanging mass is 6 kilogram
How much faster, in meters per second, does light travel in a crystal with refraction index 1.53 than in another with refraction index 2.31?
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