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A 20 kg traffic light hangs midway on a cable between two poles 40 meters apart. If the sag in the in the cable is 0.40 meters, what is the tension in each side of the cable?a. 12000Nb. 9800 Nc. 4900 Nd. 980 Ne. 4500 N
A dipole (two equal and opposite charges) are placed 1 nm apart. What is the electric force on the -e charge due to the +e charge
A 1200-kg car rolling on a horizontal surface has speed = 65km/h when it strikes a horizontal coiled spring and is brought to rest in a distance of 2.3m. What is the spring stiffness constant of the spring?
A 3.00-kg block starts from rest at the top of a 33.0° incline and slides 2.00 m down the incline in 1.75 s. Find the frictional force acting on the block
venus and the sun are separated by a distance of 0.7 au. where along the path between these two celestial objects does
An air bubble is expelled by an underwater diver at a depth of 17.2 m. Find the final volume of the bubble if its initial volume is 10.4 cm3
A stone is thrown horizontally from the roof of a tall building with a speed of 23.3 m/s. If the cliff is 26.5 high and stone lands on level parking lot below, how far from the building will the stone land?
A 65 kg woman and an 80 kg man stand 10.0 m apart on frictionless ice. How far will the man have moved when he collides with the woman
Find the magnitude of total displacement of the object
An electron acquires 6.4 x 10^-16J of kinetic energy when it isaccelerated by an electric field from plate A to plate B. What is the potential difference between the plates?
When a resistor is connected across the terminals of an acgenerator (114 V) that has a fixedfrequency, there is a current of 0.485 Ain the resistor. When an inductor is connected across the terminals of this same generator, there is a current of 0..
Water flowing through a 2.2 cm -diameter pipe can fill a 400 L bathtub in 6.0 min. What is the speed of the water in the pipe
the punter on a football team tries to kick a football so that it stays in the air for a long hang time. if the ball is
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