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A vertical, circular cross-sectional jet of air strikes a conical deflector as indicated in Fig. P5.55. A vertical anchoring force of 0.1 N is required to hold the deflector in place. Determine the mass (kg) of the deflector. The magnitude of velocity of the air remains constant
Sheena can row a boat at 3.10 mi/h in still water. She needs to cross a river that is 1.11 mi wide with a current flowing at 1.77 mi/h. Not having her calculator ready, How long does it take her to cross the river
A 265 g mass attached to a horizontal spring oscillates at a frequency of 4.60 Hz. At t=0s, the mass is at x = 4.00 cm and has vx = -20.0 cm/s. Determine T, ω, A, phase constant, maximum speed, maximum acceleration (magnitude), total energy, and the..
the vector position of a particle varies in time according to the expression 5.60 - 6.80 t2 where is in meters and t
You have a 1.91-m-long stretched string with a mass of 19.3 g. When you oscillate the string at 440 Hz, obtain the tension in the string
A 254g oscillator has a speed of 99.5cm/s when its displacement is 2.70cm and 85.0cm/s when its displacement is 5.50cm. What is the oscillator's Maximum speed
A child has a temperature of 101F. If her total skin area is 18 m2, find the energy loss per second due to radiation, assuming the emissivity is 1
A block of mass 2.50 kilogram is pushed 2.80 meter along a frictionless horizontal table by a constant 14.0 Newton force directed 25.0 degree below the horizontal. Find the work done by the normal force exerted by the table
A 200 gram block, attached to the end of an ideal spring (horizontal) with force constant k = 70 N/m, What is the total mechanical energy of the block
A race car starts from rest on a circular track of radius 353 meter. Estimate the speed of the race car
How long does it take for 2m3 of water to go through the pipe? The pipe splits into two 2.54 cm diameter pipes. What is the velocity of the water in the smaller pipes?
a model rocket is launched straight upward with an initial speed of 70.0 ms. it accelerates with a constant upward
A cylinder 5 m high with a 2m diameter is filled with water at 20 degrees C at 101 kPa is placed on the ground (circle side down). It is then drained form the bottom. What is the entropy generation in this process? Note: this is a transient process, ..
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