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If the coefficient of static friction is 0.373, and the same ladder makes a 63.0° angle with respect to the horizontal, how far along the length of the ladder can a 66.5-kg painter climb before the ladder begins to slip?
A wire has a diameter of1.7 mm and length of 1.3 m. If it's resistance is 15 m(Ohms), What is the restivity of the metal from which it is made
A 10-cm-diameter cylinder of helium gas is 20 cm long and at 20°C. The pressure gauge reads 120 psi. how many helium atoms are in the cylinder? what is the mass of the helium?
Although the evidence is weak, there has been concern in recent years over possible health effects from the magnetic fields generated by transmission lines. Estimate the magnetic field strength on the ground underneath such a line
find the center of mass of a uniform density cone. give your answer as a distance from the cone point, and as a fraction of the total cone height
A car traveling 56 km/h is 23.0 m from a barrier when the driver slams on the brakes. What was the car's constant deceleration before impact
A lens forms an image of an object. The object is 16.0 cm from the lens. is it erect or inverted
A block with mass m = 18.7 kg slides down an inclined plane of slope angle 18.4o with a constant velocity. How far up the incline will the block move before coming to rest
A house has well-insulated walls. It contains a volume of 75 m3 of air at 295 K. (a) Consider heating it at constant pressure. Calculate the energy required to increase the temperature of this diatomic ideal gas by 2°C. kJ (b) If this energy could be..
An electron is released from rest at the point midway between the two charges, and it moves along the line connecting the two charges. Illustrate what is the speed of the electron when it is 10.0 from charge 1?
A 2.6-kg 10-cm-radius cylinder, initially at rest, is free to rotate about the axis of the cylinder. Find the magnitude of the torque exerted by the rope
An airplane having a mass of 10000kg and moving at 200mph is at an altitude of 15000m. What are the airplanes kinetic and potential energy
When two identical ions are separated by a distance of 5.9 10-10 m, the electrostatic force each exerts on the other is 6.0 10-9 N. Evaluate how many electrons are missing from each ion?
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