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Suppose that the bike rider in problem 15 pedaled up the hilland never came to a stop. in what system is energy conserved? from what form of energy did the bike gain mechanial energy?Heres problem 15: a bike rider approaches a hill at aspeed of 8.5 m/s. The combined mass of the bike and the rider is85.0Kg. choose a suitable system. find the initial kinetic energyof the system. the rider coasts up the hill. assuming there is nofriction, at what hieght will the bike come to rest?
Differentiate the amplitude of a forced oscillator to find the frequency that yields the maximum amplitude. Under what conditions is the maximum driving amplitude close to the natural frequency?
a proton moves vertically upward perpendicular to a uniform magnetic field and deflects to the right as you watch it. What is the direction of the magnetic field
q1. a continuous line of charge lies along an x axis extending from x x0 to positive infinity. the line carries charge
A 43.0kg seal at an amusement park slides from rest down a ramp into the pool below. what is the work done by kinetic friction
When a parachute opens, the air exerts a large drag force on it. This upward force is initially greater than the weight of the sky diver, What are the magnitude and direction of his acceleration
A professional boxer hits his opponent with a 1000 N (225 lb) horizontal blow that lasts for 0.15 s. Calculate the impulse imparted by his blow
A ball is thrown vertically upward with a speed of 15.0 m/s. How long does it take to reach its highest point
A 240g block is attached to a horizontal spring and executes simple harmonic motion with a period of 0.150 s. If the total energy of the system is 3J.
An electron is placed at the origin of a coordinate system O, close to the surface of the Earth. A second electron is placed on the Y-axis at coordinate y so that the electrostatic force on the electron at the origin balances the gravitational force...
A 4.00 kg mass is connected to a spring with a spring constant of 9.00 N/m. If during the oscillation the velocity is 12.0 cm/s when the displacement is 4.00 cm, then what is the maximum velocity of the simple harmonic motion?
Graphically determine the resultant of the following three vector displacements: (a) 34m, 25 degrees north of east ;(b) 48m, 33 degrees east of north; and (c) 22m, 56 degrees west of south.
What is the smallest thickness of a soap film (n = 1.33) that would appear black if illuminated with 450 -nm light? suppose there is air on both sides of the soap film.
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