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A uniform ladder 7.00m long weighing 450N rests with one end on the ground and the other end against a perfectly smooth vertical wall. The ladder rises at 60.0 degrees above the horizontal floor. A 750N painter finds that she can climb 2.75m up the ladder, measured along its length, before it begins to slip.
The image behind a convex mirror (radius of curvature = 66.0 cm) is located 25.0 cm from the mirror. what is the magnification of the mirror
On a part-time job, you are asked to bring a cylindrical iron rod of length 94.7cm and diameter 2.50cm from a storage room to a machinist. Calculate the weight of the rod
A light ray enters a rectangular block of plastic at an angle of θ1 = 45.0o and emerges at an angle of θ2 = 76.0o. Determine the index of refraction for the plastic
A light ray strikes the glass of an aquarium at an angle of 45o. Determine the angle at which the ray emerges in water
A spring loaded ballistic pendulum gun requires an increasing force to load. When loading a ball of mass 0.056 kg, how high would ball rise if it was fired verticall upward
Two tugboats pulls a disabled supertanker. Each tug exerts a constant force of 1.80x106 N, What is the total work they do on the supertanker
A baseball is thrown straight up. Obtain the acceleration at the top of its path
Suppose a particle with mass m is released from rest in a uniform gravity g, write down the relativistic equation of motion and find an expression that gives the relationship between velocity and time
A radioactive sample produces 46035 decays per minute at one point in an experiment and 308.09 days later produces 837 decays per minute. What is the mean lifetime of the material
An electron, starting from rest, accelerates through a potential difference of 779 V. What is the final de Broglie wavelength of the electron
Your friend places a cup of coffee on the roof of her van while and accidently drives off with the coffee cup still on the roof. find what is the maximum acceleration the van can have without causing the cup to slide? Neglect the effects of air resis..
A force F applied to an object of mass m1 produces the acceleration of 3.10 m/s2. The same force applied to a second object of mass m2 produces an acceleration of 1.90 m/s2.
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