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The Royal Gorge bridge over the Arkansas River is 360 m above the river. A bungee jumper of mass 93 kg has an elastic cord of length 85 m attached to her feet. Assume the cord acts like a spring of force constant k. The jumper leaps, barely touches the water, and after numerous ups and downs comes to rest at a height h above the water. The acceleration of gravity is 9.81 m/s2.
A) Find h. Answer in units of m
B) Find the maximum speed of the jumper. Answer in units of m/s
If the beam now strikes the top of a building standing directly at the water's edge, find out the height of the building.
you accelerate your car starting from rest. while the car is increasing its speed, the frictional force acting from the road on the tires? A) directed backword, opposing the motion B)IS directed vertically uo, C) is directed forward, in the direct..
A ranger in a national park is driving at 28.0 mi/h when a deer jumps into the road 225 ft ahead of the vehicle. After a reaction time t, the ranger applies the brakes to produce an acceleration of a = -9.00 ft/s2. What is the most reaction time a..
Using Newton's Version of Kepler's Third Law II Part A Pluto's moon Charon orbits Pluto every 6.4 days with a semimajor axis of 19,700 kilometers. Calculate the combined mass of Pluto and Charon. Express your answer using two significant figures. ..
A sport utility vehicle (SUV) and a sports car travel around the same horizontal curve. The SUV has a static stability factor of 0.80 and can negotiate the curve at a most speed of 18 m/s without rolling over.
To clear the net, the ball must rise at least 0.294 m. If the ball just clears the net at the apex of its trajectory, explain how fast was the ball moving when it left the racquet?
Find out the velocity of the rain
What is tension in the wire
A student on a piano stool rotates freely with an angular speed of 3.10 rev/s. The student holds a 1.40-kg mass in each outstretched arm, 0.759 m from the axis of rotation, Calculate the initial and final kinetic energy of the system
A 25 kg child on a 2.0 m swing is released from rest when the swing supports make the angle of 30.0 degrees with the vertical.
Four charges are placed at the vertices of a square, centered at the origin. If each side of the square has a length of 0.224 m, what is the strength and direction of net electric field at the origin? Express your answer in terms of the charge ma..
A 5.4-µC point charge is located at x = 0.9 m, y = 3.3 m, and a -3.9-µC point charge is located at x = 1.9 m, y = -1.9 m. (a) Find the magnitude and direction of the electric field at x = -3.2 m, y = 0.9 m.' (b) Find the magnitude and direction of..
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