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It's your birthday, and to celebrate you are going to make your first bungee jump. You stand on a bridge 120 meter above a raging river and attach a 33 meter long bungee cord to your harness. A bungee cord, for practical purposes, is just a long spring, and this cord has a spring constant of 44 N/m. Suppose that your mass is 70 kilogram. After a long hesitation, you dive off the bridge.
Determine how far are you above the water when the cord reaches its maximum elongation?
In a slide or movie projector, the film acts as the object whose image is projected on a screen. how wide will the picture be on the screen
Having taken a nap under a tree only 20 m from the finish line, Rabbit wakes up to find Turtle 19.5 m beyond him, grinding along at 1/4 m/s. If the bewildered hare can accelerate at 8 m/s2 up to his top speed of 17 m/s (38 mi/h) and sustain that s..
A cat is trying to jump onto a countertop that is 1m tall from 0.3m away. The cat's initial jump speed (magnitude of the total initial velocity) is 10m/s
q1. an alpha particle helium nucleus is travelling along the positive x-axis at 1250 ms when it enters a cylindrical
a 500 g ball swings in a vertical circle at the end of a 1.5-m-long string. When the ball is at the bottom of the circle the tension in the string is 15 N. What is the speed of the ball at that point?
Two ants race across a table 74 cm long. One travels at4.64 cm/s and the other at 3.99999 cm/s. while first one crosses the finish line, how far behind is the second one? Answer in units of cm.
At a distance of 13.0 km from a radio transmitter, the amplitude of the radiated electric field of the radio transmissions is measured to be 0.20 volts/meter. determine the total power emitted by the radio station
A bicycle wheel is spinning with an angular velocity of 20 rad/s. How long does it take the wheel to come to rest
As a soap bubble (n = 1.33) evaporates and thins, thereflected colors gradually disappear. What is the last color seen
A grasshopper hops along a level road. On each hop, the grasshopper launches itself at angle θ0=45 degree and achieves a range R = 0.82 meter. Find the average horizontal speed of the grasshopper
The temperatre result in each measurement are listed below, write down the formula for mean and calculate the temperature mean value
An astronaut travels to Mars with a speed of 8400 m/s. After 1 month (30.0 days) of travel, as measured by clocks on Earth, how much difference is there between the Earth clock and the spaceship clock? Give your answer in seconds.
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