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A 90.6-kg climber is scaling the vertical wall of a mountain. His safety rope is made of a material that, when stretched, behaves like a spring with a spring constant of 1.33 x 103 N/m. He accidentally slips and falls freely for 0.997 m before the rope runs out of slack. How much is the rope stretched when it breaks his fall and momentarily brings him to rest?
A spring is compressed by 0.0709 m and is used to launch an object horizontally with a speed of 3.06 m/s. If the object were attached to the spring, at what angular frequency (in rad/s) would it oscillate?
assuming the specific heat of the body is the same as water calculate the temperature rise due to a total body dose of
q1. determine the tension in each cable if the boat has a mass of 490 kg and the angle of each cable is 50 degrees from
A man drops a baseball off of the top of the Empire State Building. If an action force is the pull of the Earth on the ball, then what is the reaction force.
A 150g copper bowl contains 220g of water, both at 20 degrees Celsius. A very hot 300g copper cylinder is dropped into the water, causing the water to heat, by 5g being converted to steam. The final temperature of the system is 100 degrees Celsius.
When monochromatic light shines vertically on a soap film (n = 1.33) with air on each side, the second smallest nonzero film thickness for which destructive interference of the reflected light is observed is 296nm. What is the vacuum wavelength of th..
What is the speed of the 2 cars as they move together after the collision.
An astronaut travels to a distant star with a speed of 0.52 relative to Earth. From the astronaut's point of view, the star is 7.4 from Earth. On the return trip, the astronaut travels with a speed of 0.87 relative to Earth.
Determine the resulting specific gravity when the three liquids in the containers A, B and C are mixed together.
An infinitely long charged wire produces an electric field of magnitude 1.17 103 N/C at a distance of 46.4 cm perpendicular to the wire. The direction of the electric field is toward the wire. (a) What is the charge distribution? (b) How many electro..
A beam of electrons is accelerated through a potential difference of 10 kV before entering a region having uniform electric and magnetic fields that are perpendicular to each other and perpendicular to the direction in which the electron is moving. I..
A Styrofoam calorimeter contains 40.0g of water at 50°C. To this we add 2.0g of ice at initial temperature of 0°C. How much heat (in calories) is needed to melt the ice
a compact disc undergoes 30 revolutions as it accelerates uniformly from rest to 5 revolutions per second.what is the
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