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An estimated 3kg-Gromit was tied to a bungee cord to clean the windows of Wendolene Ramsbottom's wool shop. The other end of the bungee cord was tied 7m above the ground. The bungee measures 4.5m in its relaxed state and we can assume that it obeys Hooke's Law with a spring constant of k=100N/m. We assume that Gromit jumped from the point of suspension of the bungee.
a) If gromit stops before he reaches the ground, what is the height h of his waist above the ground at his lowest point?
b) What is the net force on him at the height (h+d) above the ground at his lowest point?
The temperature near the surface of the earth is 310 K. A xenon atom (atomic mass = 131.29 u) has a kinetic energy equal to the average translational kinetic energy, how high up would it go before coming to rest
question1it has been claimed that an insect known as froghopper philanenus spumarius is the best jumper in animal
During a violent storm, a car is struck by a failing high-voltage wire that puts an excess charge of -850 mircoC on the metal car. a) how much of this charge is on the inner surface of the car? b) how much is on the outer surface of the car?
A roller coaster car moves 200 ft horizontally and then rises 135 ft at an angle of 30 degrees above the horizontal, What is its displacement from its starting point
A boy coasts down a hill on a sled, reaching a level surface at the bottom with the speed of 8.4 m/s. If the coefficient of friction between sled's runners and snow is 0.040.
Ashley (65 kg) and Ryan (80 kg) ride their motorcycles (100 kg) at a speed of 15 m/s in a spherical metal cage with a diameter of 10m, What is the normal force on Ryan
A 0.17 kg baseball is launched from the roof of a building 12m above the ground. What is the speed of the ball as it strikes the ground
A bat at rest sends out ultrasonic sound waves at 49.4kHz, What is the received sound frequency
You have a small electromagnet that consumes 320 W from a residential circuit delivering 115 V at 50.0 Hz. What is the internal resistance of the electromagnet
Two blocks of mass 2kg and 4 kg are held together by a string force of 10N is applied on 2kg and 20N on 4kg find the tension in the string connected between two blocks
When an electron passes through the origin (x = 0, y = 0, z = 0), its velocity has components ofvsubx = 0 m/s, vsuby = +5000 m/s, find the maximum distance the electron gets from the origin in its subsequentmotion
Find the radius R of the star Rigel, the bright blue star in the constellation Orion, which radiates energy at a rate of 2.7×1032 W
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