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A ferry transports tourists among three islands. It sails from the first island to the second island, 5.66 km away, in a direction 37.0° north of east. It then sails from the second island to the third island in a direction 80.0° west of north. Finally, it returns to the first island, sailing in a direction 28.0° east of south.
(a) Calculate the distance between the second and third islands.
km
(b) Calculate the distance between the first and third islands.
You and Maria each own identical spaceships. As you fly past Maria, you measure her ship to be 96 m long, How fast is Maria moving relative to you
A sound source emits sounds of frequency 190 Hz that travel by still air at 340 m/s. The listener moves at 75 m/s relative to still air toward the stationary source. What is the wavelength of the sound between source and listener.
A 4 kg block rest against one end of a horizontal spring which is compressed by 20 cm. Calculate the constant of kinetic friction Mk between the block and the table
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A cart loaded with bricks has a total mass of 20 kg and is pulled at constant speed by a rope. How much work is done on the cart by the rope
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