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A nozzle with a radius of 0.6 cm is attached to a garden hose with a radius of 1.423 cm. The flow rate through the hose and nozzle is 0.679 L/s. Calculate the speed of the water (m/s) in the nozzle.
A charged particle is travelling west through a downward magnetic field and it experiences a magnetic force directed to the north. Using the appropriate hand rule, determine if the charge is negative or positive. Explain all finger directions an..
two small spheres spaced 50.0 centimeters apart have equal charge. how many excess electrons must be present on each
a rowboat crosses a river with a velocity of 3.95 mih at an angle 62.5deg north of west relative to the water. the
A projectile of mass 0.950 kg is shot straight up with an initial speed of 24.0 m/s, If the projectile rises to a maximum height of only 19.7 m, determine the magnitude of the average force due to air resistance
A 4.00 x 107 kg battleship originally at rest fires a 1200 kg artillery shell horizontally with a velocity of +400 m/s. Calculate the increase in internal kinetic energy
The protein dynein powers the flagella that propel some unicellular organism. biophysicists have found that dynein is intrinsically oscillatory and that it exerts peak forces of about 1.0 pN when it attaches to structures called microtubules. thee re..
A 3.3 millimeter copper wire carries a 16 Amp current (uniform across its cross section). Evaluate the magnetic field at the surface of the wire
A puma can jump to a height of 3.7 meters when leaving the ground at an angle of 45 degrees. With what speed must the animal leave the ground to reach that height
How much energy is stored by the electric field between two square plates, 7.9cm on a side, separated by a 2.3-mm air gap
the forces exerted on the shoes and back of the 72-kg climber bythe walls of the chimney are perpendicular to the walls exertingthem. what is the magnitudeof the force exerted on his back
What is tension in the cord
Two cars B and C approach car A in opp directions with a speed of 54 km/h each. At a certain instant, when the distance AB is equal to AC, both being 1km, B decides to overtake A before C does.
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