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A string provides a horizontal force which acts on a 500 N rectangular block at top right-hand corner as shown.(the picture shows a rectangle with a hieght of 1m and width of 0.7m, it also shows the force of mg of 500N pointing down) If the block slides with constant speed, find the tension in the string required to start to tip the block over. Answer in units of N.
A wire of radius a is surrounded by a cylindrical conductor of inner radius a and outer radius 2a,. find the radius at which the magnetic field is zero
In a series circuit, a generator (1436 Hz, 14.7 V) is connected to a 15.2-? resistor, a 3.85-µF capacitor, and a 5.47-mH inductor. Find the voltage across each circuit element
A 75-m long train begins unknown uniform acceleration from rest.The front of the train has a speed of 23 m/s when it passes arailway worker who is standing 180m from where the front of the train started. What will the speed of the last car be as i..
You are on a team that will recover a ship from the sea. You have been given the task to perform a few calculations to move your team forward. find the tension when the body is completely out of water
A rock climber throws a small first aid kit to another climber who is higher up the mountain. FIND the vertical height difference between the two climbers
Suppose a tank contains 774 m3 of neon (Ne) at an absolute pressure of 1.01Ã-105 Pa. What is the increase in the internal energy of the neon
Two girls decide to jump off a diving board. Katherine steps off the diving board. Anna runs straight off the diving board so that her initial velocity is solely horizontal. They both leave the diving board at the same time. Which one lands in the..
(a) Calculate the number of gas molecules per cubic centimeter at this pressure. (b) What is the mean free path of the gas molecules if the molecular diameter is 2.12 x 10-8 cm.
Consider a solid sphere, mass = 4.0 kg, that is spinning with an angular velocity of 23 radians/second.The diameter of the sphere is 0.20 meters
The coefficient of expansion of iron and zinc
The electric field midway between two equal but opposite point charges is 832 , and the distance between the charges is 11.6. evaluate the magnitude of the charge on each
A device known as Atwood\'s machine consists of two masses hanging from the ends of a vertical rope that passes over a pulley, calculate the magnitude of their acceleration, a, and the tension in the rope, T
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