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Two children stretch a jump rope between them and send wave pulses back and forth on it. The rope is 2.5 m long, its mass is 0.48 kg, and the force exerted on it by the children is 39 N.
(a) What is the linear mass density of the rope (in kg/m)?
(b) What is the speed of the waves on the rope (in m/s)?
While a roofer is working on a roof that slants at 44.0 above the horizontal, how fast will the toolbox be moving just as it reaches the edge of the roof if the kinetic friction force on it is 18.0
The far point of a nearsighted person is 5.5 meter from her eyes, and she wears contacts that enable her to see distant objects clearly. Determine how high is the image formed by the contacts
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a carnot engine with a hot-reservoir temperature of 380 degree c has the same thermal efficiency. what is the
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We then disconnect it from the battery and connect it to an empty of charge capacitor of 4 uF. Find the charge on each capacitor.
charges of 4.0 microc and -6.0 microc are placed at two corners of an equilateral triangle with sides of 0.10 m. at the
The two blocks never touch. Calculate the maximum height to which m1 rises after the elastic collision.
The motor of a Scout rocket uses up all the fuel and stops when the rocket is at an altitude of 200 km above the surface of the Earth, How high will this rocket rise
the net force acting on a 6.0-kg object is given by fx 10- x n where fx is in newtons and x is in meters. how much
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