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A bicycle and rider going 14 m/s approach a hill. Their total mass is 92 kg.(a) What is their kinetic energy?
The chain transmits 3.7 kW at a chain velocity of 4 m/s, and the sprocket diameter is 122.3 mm. The distance between the inside edges of the sprocket shaft support is 115 mm. Determine a satisfactory combination of bearing length, diameter, an..
Derive the list using the quantum numbers
Two forces act on a 5kg object. One force is 40 N and directed east. the other force is directed west. what is the magnitude and direction of the second force
The counterbalance w1 weighs 100 N. Find out the weight w2 and the angle α needed so that no force is exerted on the hip joint by the leg plus cast.
Compute the equivalent resistance of the network in the figure. The battery has negligible internal resistance. Find the current in the 2.85Ω resistor.
An alpha particle with the kinetic energy Wk=10MeV is heading towards a stationary tin nucleus number is 50. Calculate the distance of the closest approach.
A 1.9-kilogram mud ball drops from rest at a height of 18 m. If the impact between the ball and the ground lasts 0.56s, Find the final velocity of the 4.90-kg ball if the collision is elastic
What is the current through the first resistor R1? What is the current through the second resistor R2? What is the current through the third resistor R3?
A simple pendulum of length 0.8 m swings such that the pendulum reaches the maximum speed in the positive direction at a time of 0.3 seconds. At 0.4 seconds, the pendulum is at an angle of 0.05 radians. Assuming a solution of the form theta (t) = A c..
Suppose that a current iω flows in the wire at R=2b. What force does the wire exert on the pipe if iω flows in the same direction as ip, the total current in the pipe?
A student is reading a lecture written on a blackboard. The lenses in her eyes have a refractive power of 58.05 diopters, what is the height of the image on the retina
An electron decays from the n = 4 orbit to the n = 1 orbit in the hydrogen atom. If the work function of aluminum is 4.3 eV, does the ensuing photon have enough energy to knock an electron out of aluminum? If so what is the wavelength of the electr..
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