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A crane is pulling up a 60,000-kg submerged cylindrical storage tank in seawater with a speed of 0.1 m/s. The tank diameter is 2 m and its length is 16 m calculate the power requirement in horsepower to overcome the weight, buoyancy and drag if:
a) Cylinder length is parallel to the direction of motion,
b) Cylinder length is normal to the direction of motion.
A shop sign weighing 245-N is supported by a uniform 155-N bean. Find out the tension in the guy wire, and the horizontal and vertical forces exerted by the hinge on the bean.
Represent and Reason Olympic skier Lindsey Vonn skis down a steep slope that descends at an angle of 30O below the horizontal. The coefficient of sliding friction between her skis and the snow is 0.10. Determine Vonn's acceleration, and her speed ..
Two initially uncharged capacitors, of capacitance C and2C, are connected in series across a battery.
Ship A is located 4.2 km north and 2.6 km east of ship B. Ship A has a velocity of 22 km/h toward the south and ship B has a velocity of 38 km/h in a direction 38° north of east. At what time (in h) is the separation between the ships least
A current of 0.307 A through your chest can send your heart into fibrillation, ruining the normal rhythm of heartbeat, how many conduction electrons pass through your chest
A uniform 450N and 7m long ladder rests against a smooth wall making a 30degree angle with wall. A 750 N man can climb up to 2.75m up the ladder before it begins to slip. what is the frictional force on the ladder on the floor
Two point charges Q1 = +4.90 nC and Q2 = 2.70 nC are separated by 25.0 cm. What is the potential energy of the pair of charges
a speeder passes a parked police car at a constant speed of 21.1 ms. at that instant the police car starts from rest
In reaching her destination, a backpacker walks with an average velocity of 1.05 m/s, due west. How far did she walk
A boat takes 4 h to travel 30 kilometer down a river, then 8 h to return. Evaluate how fast is the river flowing
A large asteroid of mass 71700 kg is at rest far away from any planets or stars. What is the speed of the second asteroid
A mass m1 = 5.3 kg rests on a frictionless table and connected by a massless string to another mass m2 = 5.3 kg. What is the final speed of the two blocks
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