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Water flows straight down from an open faucet. The cross-sectional area of the faucet is 1.2 × 10-4m2 and the speed of the water is 0.55 m/s as it leaves the faucet. Ignoring air resistance, find the cross-sectional area of the water stream at a point 0.12 m below the faucet.
Liquid nitrogen boils at 77.00 K. Would this experiment needs to be altered if we used water, which boils at 373 K? Why.
a component with a 15 ohm resistor is rated for use at power levels not exceeding 1603 mw. how much current can safely
Imagine you are pushing a 15 kg cart full of 25 kg of water up a 10 degree ramp. If the coeff. of friction is .02, what is the total force needed to push it up the ramp
two identical conducting spheres fixed in place attract each other with an electrostatic force of 0.108n when their
Consider a small, conducting sphere of 0.0010 kg mass. Extra electrons are placed on this sphere, How many electrons must be added to each sphere
A 2.9-kg toy locomotive is pulling a 1.7-kg caboose. The frictional force of the track on the caboose is 0.54 N backward along the track. If the train is accelerating forward is 2.6 m/s2, what is the magnitude of the force exerted by the locomotive o..
a truck moving at 13.3 m/s hits a concrete wall. what is the average force exerted on the wrench by the wall
A runner is running the first heat of a100 m race at a velocity of 6.9 m/s in an easterly direction. What is the relative velocity of the runner to the wind
Two point charges Q1 = +5.30 nC and Q2 = ?1.60 nCare separated by 55.0 cm. What is the potential energy of the pair of charges
the inner and outer surfaces of a cell membrane carry a negative and positive charge respectively. because of these
A small object is located 31.6{\rm cm} in front of a concave mirror with a radius of curvature of 39.0{\rm cm}. Where will the image be formed
A person on a rocket traveling at 0.50c (with respect to the Earth) observes a meteor come from behind and pass her at a speed she measures as 0.50c
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