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A steel wire of length L=2.0 m with cross section A=0.5cm2 is supported from one end by the ceiling, and on theother end is attached a weight of 400 N.
a) Calculate the elongation of the wire.
b) Does the tensile force on the wire caused by the weightexceeds the tensile limit of the steel wire?
A capacitor consisting of two plates separated by a distance d of 4.25 x 10^-3, with an area A of 8.15 x 10^-4 m^2, What is the numerical value of the energy for the capacitor
a closed frictionless piston-cylinder assembly contains 4 lbm of h20. beginning with an initial volume of 10 ft3 the
A child's toy consists of a piece of plastic attached to a spring in the figure below. The spring is compressed against the floor a distance of 2.00 cm, estimate the force constant of the spring
An object moves uniformly around a circular path of radius 23.0 cm, making one complete revolution every 2.05 s. What is the angular speed of the object
A charge of -6 nC is at the origin and a second charge of 11.0 nC is at x = 5.0m. Find the magnitude and direction of an electric field halfway in between the two charges.
A household pays $1850 per year for the supplied electricity. find the average power of energy consumption
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
You exert a force as shown in the diagram to push a large crate of books (about 1 m high, m = 45.0 kg) across a rough floor at constant speed v = 0.650 m/s. Find the rate at which work is done by you
A 70.0 kg girl lowers herself to the ground from a height of 8.8 m by holding onto a rope running over a pulley to a 54.0 kg sandbag. what is her speed when she reaches the ground
An object weighing 338 N in air is immersed in water after being tied to a string connected to a balance. The scale now reads 302 N. Immersed in oil; object weighs 313 N. Calculate the density of the object.
a capacitor is formed by a long length l 1-mm diameter wire that is centered inside a long l 25-mm diameter cylindrical
a source emits a sound uniformly in all directions. a radial line is drawn from this source. on this line determine the
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