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Water flows at the rate of 2.99 kg/s through a hose with a diameter of 3.70 cm. (a) what is the speed of water in this hose? (b) If the hose is attached to a nozzle with a diameter of 0.750 cm, what is the speed of water in the nozzle? m/s (c) Is the number of kilograms per second flowing during the nozzle greater than, less than, or equal to 2.99 kg/s? Describe.
A 100 gram bullet is fired from a rifle having a barrel 0.8 meter long. Find what work is done by the gas on the bullet
1. a gas phase molecules of hcl has a bond length of 127.5pm cl35 h1. as it rotates in space what is its zero-point
A cylindrically shaped piece of collagen is being stretched by a force that increases from 0 to 3.0 x 10^-2 N. How much work is done by the variable force that stretches the collagen
A car at the Indianapolis-500 accelerates uniformly from the pit area, going from rest to 285 km/h in a semicircular arc with a radius of 190 m. Determine the tangential acceleration of the car
A quarter circle of electric charge with a radius of 2.5 m has a uniform charge density of +0.7x10^-6 C/m. At the center of the circle is located a +0.3C charge
a string is wrapped tightly around a fixed pulley that has a moment of inertia of 0.0352 kg m2 and a radius of 12.5 cm.
A rotating wheel requires 8.00 second to rotate 30.0 revolutions. Its angular velocity at the end of the 8.00 s interval is 100.0 rad/s. Explain the constant angular acceleration of the wheel
a car is traveling at 30.0 ms when the driver suddenly applies the brakes giving the car a constant deceleration. the
A block with mass m = 3.58 kg is placed against a spring on a frictionless incline with angle ? = 32.5°. find the elastic potential energy of the compressed spring
A robot unloads a finished component from a machine and places it on a gravity conveyor. The conveyor accelerates from rest until it reaches the bottom of the conveyor 4.5 seconds later. The component is traveling at a velocity of 1.35 m/s when it..
A 1.1 kg hollow ball with a radius of0.12 m, filled with air, is releasedfrom rest at the bottom of a 1.9 mdeep pool of water. How high above the water does the ball shoot upward
Two charged plates create a potential difference of 190 V. At a point halfway between the plates an electron is released from rest. What was the initial speed and direction of the proton
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