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A painters scaffold is supported by cables at each end. The scaffold weighs 200 Newtons, is 18 meters long, and is uniform inconstruction. If a painter weighing 810 Newtons stands 4.5 metersfrom the left hand end of the scaffold, what is the tension in each of the supporting cables? Can't figure it out.
Assume that a 90.0 W light bulb radiates all its energy as a single wavelength of visible light. Estimate the magnetic field strength at the surface of the bulb
A 420-g ball is attached to one end of a horizontal cord of length L = 2 m and the other end is fixed, what will be its speed at the lowest point of its path
A laboratory technician drops an 83.5g solid sample of unknown material at a temperature of 100?C into a calorimeter. Compute the specific heat capacity of the sample
q1. express how unmet basic physiological needs of oxygen nutrition temperature and humidity threaten clients
A 1.94-cm-high object is placed 23.8 cm in front of a concave mirror with a 5.84-cm focal length. What is the position of the image
A 12 g bullet is stopped in a block of wood (mw = 5.6 kg). What was the original speed of the bullet
A cube of edge length a in free sapace is charged over its volume with a charge density p(x)=p0 *sin(pi*x/a), Compute the total charge of the cube
An airplane flies eastward and accelerates uniformly. At one position along its path it has a velocity of 28.9 m/s. Find the airplane\'s acceleration
A car traveling at 24.0 {rm m/s} runs out of gas while traveling up a 25.0^circ slope. How far would the car go up the hill before it runs out of gas.
A sphere completely submerged in water is tethered to the bottom by a string. The tension in the string is 1/5 (aka one-fith) the weight of the sphere. What is the density of the sphere
Consider a square loop of wire (sides of 0.25 m) with a resistor included. A bar magnet with the north end up front is approaching the closed loop and thus induces a current. what is the rate of energy dissipation across the resistor
is it possible for both the pressure and volume of a monatomic ideal gas to change without causing the internal energy
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