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A scaffold of mass 60 kg and length 5.5 m is supported in a horizontal position by a vertical cable at each end. A window washer of mass 72 kg stands at a point 1.0 m from one end.
(a) What is the tension in the cable closer to the painter (in Newtons)?
(b) What is the tension in the cable further from the painter (in Newtons)?
A 38.0 kg child swings in a swing supported by two chains, each 3.04m long. The tension in each chain at the lowest point is 429N. Find out the child's speeds at the lowest point.
A 30-meter steel tape is correct at a temperature of 20.0(C). The distance between two points, as measured by this tape on a day when the temperature is 5 (C), is 25.970m. What is the true distance between the points?
determine that the auto was traveling at a speed of approximately 30 m/s upon impact with the groung. Explain how fast must the car have been moving before leaving the road?
The Achilles tendon inserts on the calcaneus at a distance of 8cm from the axis of the ankle joint. The force generated by the muscles attached to the Achilles tendon is 3000N, and the moment arm of this force is 5cm. a) Draw a free body diagram o..
Use Gauss law to compute amount of charge
The diagram on the left below shows two resistors in series with an ideal battery, in the diagram on the right; a third resistor has been added in parallel with R2. Calculating the resistance, current and potential difference.
Two cylindrical rods are identical, except that one has a thermal conductivity k1 and the other has a thermal conductivity k2. As the drawing shows.
A 1 kg wheel (hoop) rolls 5 rev. across a horizontal surface (without slipping)a distance of 3.2 m. if the wheel rolls for 3 sec. determine the angular velocity of the wheel
A flat circular coil with 110 turns, a radius of 3.80 × 10-2 m, and a resistance of 0.340 ? is exposed to an external magnetic field that is directed perpendicular to the plane of the coil, Find the induced current in the coil
A galvanometer with a full scale sensitivity of 500 muA and a coil resistance of 54 Omh, What is the required shunt resistance
You need to determine the density of a ceramic statue. If you suspend it from a spring scale, the scale reads 28.4N. What is the density
Three resistors, 23, 45, and 73 ?, are connected in series, and a 0.55-A current passes through them. (a) What is the equivalent resistance? (b) What is the potential difference across the three resistors?
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