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An 8 meter, 280 Newton uniform ladders rests against a smooth wall. The coefficient of static friction between the ladder and the ground is 0.65, and the ladder makes a 50.0Â degree angle with the ground. Find how far up the ladder can an 870 Newton person climb before the ladder begins to slip?
The mass of Venus is 0.8140 times that of earth, and its radius is 0.950 times that of earth. Calculate the acceleration of gravity at the surface of Venus
A lever is 5.0 m long. The distance from the fulcrum to the weightto be lifted is 1.0 m. how much force must be exerted on the lever
When a voltage difference is applied to a piece of copper wire, a 5.0 mA current flows. If the copper wire is replaced with a silver wire with twice the diameter of the copper wire
a beam of white light is shined at normal incidence onto the outside of a soap bubble(index of soap solution = 1.340). What is the thinnest wall thickness of the bubble
A high-voltage transmission line with a resistance of0.310 Ω/km carries a current of 970. A, starting at 660.kV for a distance of 162 km. Compute the power loss due to resistance in the line.
A projectile is fired such that its horizontal range is equal to 2.0 times its maximum height. Find the angle the projectile was fired at
The planes of atoms in a cubic crystal lie parallel to the surface, 0.87 nm apart. X rays having wavelength 0.41 nm are directed at an angle θ to the surface. For how many values of θ will there be a strong reflection? What is the largest value of θ ..
if the size of the positive charge value is tripled for both of two point charges to maintain the same mutual force
q1. a pipe open only at one end has a fundamental frequency of 241 hz. a second pipe initially identical to the first
A certain kind of glass has an index of refraction of 1.660 for blue light of wavelength 420 nm and an index of 1.630 for red light of wavelength 690 nm. what is the angle between the two beams inside the glass
What is the free-fall acceleration at the surface of the moon and What is the free-fall acceleration at the surface of the Jupiter
An LC circuit includes a 0.010 µF capacitor and a 400 µH inductor. If the peak voltage on the capacitor is 190 Volt, find what is the peak current in the inductor
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