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Solve the each part of given problem:
Problem: Hooke's law describes a certain light spring of unscratched length 36.0 cm. When one end is attached to the top of a door frame and a 6.40-kg object is hung from the other end, the length of the spring is 46.0 cm.
Part A: Find its spring constant?
Part B: The load and the spring are taken down. Two people pull in opposite directions on the ends of the spring, each with a force of 180 N. Find the length of the spring in this situation.
Please show all intermediate steps and formulas for above problem.
a worker pushes a 20 kg crate straight across a 1 m long section of horizontal floor with a constant horizontal force
Find out the potential difference between a point.
An electromagnetic velocity filter (sometimes called a Wien filter) is used in a variety of experiments and other applications, such as electron microscopes, in which we need a beam of charged particles all going at the same speed. Generally the s..
A spherical balloon has a radius of 12.5 m, and is filled with helium. How large a cargo can it lift, assuming that the skin and structure of the balloon have a mass of 1200 kg? avoid the bouyant force on the cargo volume itself.
A spring with spring constant k = 430 N/m is initially compressed x = 1.60 cm. How much work is done by the spring during this process
The arm of a crane is 17.0 meter long and makes an angle of18 degree with the horizontal. Find the maximum torque the crane can withstand if the maximum load is 454 N
You are in charge of regulating the temperature of the swimming pool for the next Olympic games. The water in the pool fills a volume of 25 m x 50m x 2m and the water should be kept between 25 and 27 degrees Celsius. how much ice ( in kg) will you ..
Integrated circuits are manufactured in vacuum chambers in which the air pressure is 9.00×10?11mm of Hg. What is the mean free path of a molecule
A river flows due east at 1.50 m/s. A boat crosses the river from the south shore to the north shore with maintaining a constant velocity of 11.0 m/s due north relative to the water. What is the velocity of the boat relative to shore?
A person drives north at 25 m/s for 10 min. west at 10 m/s for 15min and 20 m/s for 5 min. on a road that is at an angle of 30° south of east. What is the displacement for each part of the drive
A great amount of water vapor changes phase to become water in the clouds that form a thunderstorm. Does this process release or absorb thermal energy
A geothermal power plant is supplied with water at a well bottom temperature of 225 degrees C and a pressure of 8 MPa. The fluid flows into a flash separator maintained at 40 KPa. The turbine exit pressure is 10KPa.
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