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A man of mass 85.0kg is escaping a burning building using a rope that will break if the tension exceeds 700N. With what acceleration must he slide down the rope if it is not to break?
A lawn mower has a flat, rod-shaped steel blade that rotates about its center. What is the rotational energy of the blade at its operating angular speed of 3340 rpm
A convex spherical mirror, whose focal length has a magnitude of 15.2 cm, is to form an image 10.4 cm behind the mirror. where should the object be placed
A bungee cord is stretched between two poles with a force of 447 N, What is the velocity of a wave on this bungee cord
A capacitor is a device used in a variety of electronic circuits. In a simple design a capacitor consists of two parallel metal plates of area A separated by a distance d. When the plates are connected to the positive and negative terminals of a b..
What is instantaneous acceleration
A speeder is pulling directly away and increasing his distance from a police car that is moving at 23.0 m/s with respect to the ground. Calculate the speeder's speed with respect to the ground.
Theoretical Values for C = 100 microF and R=10 ohm; Resonant Frequency(Linear)= 90 hz, Calculate Resonant Angular Frequency
Water is being pumped through a horizontal pipe that is 37.8 m long and 14.5 cm in diameter. what gauge pressure must the pump provide to give the same volume flow rate as for the first pipe
A heat pump keeps a house warm at 72.0 degrees Fahrenheit when the outside temperature is 0 degrees Fahrenheit. How much heat is drawn in from the outside
A 20 x microscope objective is designed for use in a microscope with a 17 cm tube length. The objective is marked NA = 0.45. What is the diameter of the objective lens
A 41 kg ice skater is moving at 4.73 m/s when she grabs the loose end of a rope, the opposite end of which is tied to a pole. Find the force exerted by the rope on her arms
A rocket, initially at rest on the ground, accelerates straight upward from rest with constant acceleration 34.3m/s2. Find the maximum height ymax reached by the rocket
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