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A 8.90-kg hanging object is connected by a light, inextensible cord over a light, frictionless pulley to a 5.00-kg block that is sliding on a flat table. Taking the coefficient of kinetic friction as 0.172, find the tension in the string.
A wheel with c=4/9, a mass of 43.8kg, and a rim radius of 31.1cm is mounted vertically on a horizontal axis. Find the angular acceleration of the wheel
ConsideragainFig.1.12.Nowletthe14-kgweighthangfromthemid- dle of the lower arm (20 cm from the fulcrum). Calculate the biceps force and the reaction force at the joint
A 32.0 kg child takes a ride on a Ferris wheel that rotates four times each minute and has a diameter of 18.0 m. What is the centripetal acceleration of the child
A Thomson's gazelle can run at very high speeds, but its acceleration is relatively modest. What is the gazelles top speed
Blood pressure is normally taken on the upper arm at the level of the heart. Assume, however, that a patient has his arms in a cast so you cannot take his blood pressure in the usual way.
A uniform plank of 3.00 m and a mass of 50.0 kg is supported with three ropes, as indicated by the blue vectors in FigureP8.21. Find the tension in all rope when a 700 N person is.500 m from the left end.
The "reaction time" of the average automobile driver is about 0.7. Compute the total distance covered in coming to a stop after a signal is observed from an initial velocity of 14.6
a bear awakening from winter hibernation staggers directly northeast for 15 m and then due east for 15 m. show each
A plane electromagnetic wave has a maximum electric field of magnitude 3.8E-6 V/m. Find the maximum magnetic field amplitude
1 . a wooden box item sits on a horizontal wooden board. the coefficient of static friction between the box and the
Find the change in length of the bridge for an increase in temperature of 10 degree Celcius
A stream of doubly ionized particles (missing two electrons and therefore carrying a net charge of two elementary charges) moves at a velocity of 3.0 x 104 m/s perpendicular to a magnetic field of 9.0 x 10-2 T. What is the magnitude of the force acti..
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