5. A diver explores a shallow reef off the coast of Belize. She initially swims 90.0 m north, makes a turn to the east and continues for 200.0 m, then follows a big grouper for 80.0 m in the direction 30 north of east. In the meantime, a local current displaces her by 150.0 m south. Assuming the current is no longer present, in what direction and how far should she now swim to come back to the point where she started?
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- At one point in time, the price of gold was about $1400 per ounce, while that of silver was about $20 an ounce. The "ounce" in this case is the troy ounce, which is equal to 31.1035 g. (The more familiar avoirdupois ounce is equal to 28.35 g.) The density of gold is 19.3 g/cm^3 and that of silver is 10.5 g/cm^3. a)If you found a spherical gold nugget worth $5.00 million, what would be its diameter? b)How much would a silver nugget of that size be worth?A viscous fluid flows in two different pipes. Pipe 1 has a radius r1, and Pipe 2 has a radius r2. If both pipes have the same length and r1 > r2, choose the correct statement about the pressure difference of the fluid in Pipe 1 and Pipe 2. Assume that the volume flow rates are the same in the two pipes. Group of answer choices The fluid in Pipe 1 has larger pressure difference. The fluid in Pipe 2 has larger pressure difference. The pressure difference of the fluid is the same in Pipe 1 and Pipe 2. It cannot be determined in which pipe the fluid has larger pressure difference.Problem 3: A tourist accidentally dropped a 1 kg gold bar into the ocean. The depth of the ocean is 4 km, and the density of seawater is 1036 kg/m³. The density of gold is 19300 kg/m³. (a). What is the net force on the gold bar? (b). How long does it take for the gold bar to sink to the bottom of the ocean?
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- Part 1 The hose is held at an angle 0 = 30° with the horizontal, and the water is discharged at A with a speed of vд = 40 ft/s. If the water stream strikes the building at B, determine the two possible distances s from the building. Part 2 Water is discharged from the hose with a speed of 40 ft/s. Determine the two possible angles the firefighter can hold the hose so that the water strikes the building at B. Take s = 20 ft. VA = 40 ft/s A 4.5ft B 10ftA dock is formed by completely submerging a metal plate and attaching it to an underwater wall. The exposed side of the metal plate faces the ocean and is subjected to the flow of water induced by tides. The plate is 2.5m in height and 20m in width. How much force will the water exert on the metal plate if the current has a velocity of v=3ms at maximum tidal flow?Invalid path. The figure below shows the essential parts of a hydraulic brake system. The area of the piston in the master cylinder is 1.8 cm? and that of the piston in the brake cylinder is 6.4 cm?. The coefficient of friction between shoe and wheel drum is 0.50. If the wheel has a radius of 32 cm, determine the frictional torque about the axle when a force of 33 N is exerted on the brake pedal. N. m Wheel drum Pedal Shoe Master Brake cylinder cylinder
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