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A scaffold of mass 65 kg and length6.5 m is supported in a horizontalposition by a vertical cable at each end. A window washer of mass72 kg stands at a point 1.1 m from one end.
(a) What is the tension in the cable closer tothe painter?
N
(b) What is the tension in the cable further from the painter?
You are traveling on an airplane. The velocity of the plane with respect to the air is 180 m/s due east, How far east will the plane travel in 1 hour
What is the speed of a free electron that has just barely enough kinetic energy to collisionally ionize a sodium atom in its ground state? What is the speed of a free proton with just enough kinetic energy to collisionally ionize this atom?
question 1 an open organ pipe of length 0.831655 m and a closed one of length 1.23501 m are sounded together. what beat
A parallel-plate capacitor has circular plates of 10.1 cm radiusand 1.28 mm separation. (a) Calculate the capacitance in picofarads. (b) What charge in nanocoulombs will appear on the plates if a potential difference of 135 V is applied?
An electron is accelerated from rest through a potential difference of 70V. What is the de Broglie wavelength of the electron
A patients blood pressure is measured as 140 / 80, measured in level with the heart. What would you expect the blood pressure to be at the top of the head if there is a 45cm height difference in the two points. Density of blood is 100kmm-3. Give r..
Solenoids produce magnetic fields that are relatively intense for the amount of current they carry. Find the magnetic field at the center of the solenoid
At a given instant, the blood pressure in the heart is 1.8 x 104 Pa. If an artery in the brain is 0.37 m above the heart, what is the pressure in the artery
q1. a toy train rolls around a horizontal 1.2--diameter track. the coefficient of rolling friction is 0.15.what is the
a parallel plate capacitor with plates of area 500 cm2 is charged to a potential difference v and is then disconnected
q1. a 750 gram grinding wheel 25.0 cm in diameter is in the shape of a uniform solid disk. we can overlook the small
Before starting this problem, review Conceptual. The force vector A has the magnitude of 75.0 newtons (N) and points due east. The force vector B has a magnitude of 101 N and points 72.9 ° north of east.
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