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To fight a fire on the fourth floor of a building, firefighters want to use a hose of diameter 6.31cm to shoot 925 liters/minute of water to a height of 11m.
a) With what minimum speed must the water leave the nozzle of the fire hose if it is to ascend 11m? What pressure must the water have inside the hose? Ignore friction.
while the surface temperature can reach 320K. These data imply that Venus has a "thicker" atmosphere at its surface than does the earth that means that the number of molecules per unit volume (N/V) is greater on the surface of Venus than on the ea..
The solution to Bernoulli's equation, The construction of a flat rectangular roof (3.9 m x 4.3 m) allows it to withstand a maximum net outward force of 20050 N.
Rhea, one of Saturn's moons, has a radius of 765 km and an acceleration due to gravity of 0.278 m/s2 at its surface. Calculate its mass and average density.
The orbit of this second satellite has a radius of 8.45 x10^6 m. What is the orbital speed of the second satellite.
What was the change in velocity of the scooter.what mass may be placed 2 cm away from the other end of the bar to keep the bar horizontal.
What is magnitude of the Coulomb force
From the equation for the line of best fit given, what is the magnitude of the crankshaft's angular acceleration? Express your answer using two significant figures.
what is the shortest height a plane mirror must be so that a person 1.60 meters tall is able to see his or her whole body.
.250 kg ball is dropped to the floor from a height of 1.0 m and upon rebounding, reaches a height of .60 m. What is the impulse delivered to the ball by the floor?
Two stationary positive point charges, charge 1 of magnitude 3.10 nC and charge 2 of magnitude 1.74 nC, are separated by a distance of 36 cm. An electron is free from rest at the point midway between the two charges, and it moves along the line con..
What is the piston height if the temperature is 30C. How far apart are the plates if there's air between them.
You hold a spherical salad bowl 90 in front of your face with the bottom of the bowl facing you. The salad bowl is made of polished metal with the 30 radius of curvature. Where is the image of your 2.0 tall noses located.
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