How much work must this force do to stop the wheel
A uniform disk with a mass of 150 kg and radius of 1.3 m rotates with an angular speed of 1000 rev/min. A constant tangential force is applied at a radial distance of 0.7 m. How much work must this force do to stop the wheel?
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Retrorockets are fired along the line of motion to reduce the probe's speed. The retrorockets generate a force of 3.0 105 N over a distance of 2600 km. What is the final speed of the probe?
What is the magnifying power of an astronomical telescope having 0.1 diopter object and 20 diopter of eye piece. also find the length of the telescope.
An electron moving along the x axis has a position given by x = 11te-1t m, where t is in seconds. How far is the electron from the origin when it momentarily stops?
A positively charged light metal ball is suspended between two oppositely charged metal plates on an insulating thread as shown below. After being charged once, the plates are disconnected from the battery. Describe the behavior of the ball.
Major cities grew rapidly in the 19th century. Identify and discuss the problems these cities dealt with as a result of rapid growth.
The coefficient of kinetic friction is 0.265. What is the tension in the string and what is the acceleration of the system. The box off the table weighs 10.0 kg.
Explain the human and political forces and powers that work against the creation of a global social contract. What factors might draw the world toward global government?
A 250 kg weather rocket is loaded with 100 kg of fuel and fired straight up. It accelerates upward at 32 m/s2 for 34 s, then runs out of fuel. Ignore any air resistance effects. What is the rocket's maximum altitude?
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