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Question: Water is moving with a speed of 4.7 m/s through a pipe with a cross-sectional area of 4.3 cm2. The water gradually descends 7 m as the pipe increases in area to 8.2 cm2. (a) What is the speed at the lower level? 2.46m/s (b) If the pressure at the upper level is 2.0x10^5Pa, what is the pressure at the lower level in Pa?
A particle undergoes simple harmonic motion with maximum speed 2 m/s and maximum acceleration 3.7 m/s^2. Find the angular frequency. Find the period. Find the amplitude of the motion.
A boat can travel 2.20 m/s in still water. What will be the position of the boat, relative to its point of origin, after 3.00 s
The Mariana trench is located in the Pacific Ocean at a depth of about 11 000 m below the surface of the water. If an underwater vehicle were to explore such a depth, what force would the water exert on the vehicle's observation window
A delivery truck travels 32 blocks north, 16 blocks east, and 26 blocks south. Assume the blocks are equal length. Illustrate what is the magnitude of its final displacement from the origin?
A crate is dragged across a rough floor by a force of 120N asz` shown below. A friction force of 40N acts to slow the motion of the crate. what is the net work done
You are driving into St. Louis, Missouri, and in the distance you see the famous Gateway-to-the-West arch. This monument rises to a height of 192 m. You estimate your line of sight with the top of the arch to be 4.5° above the horizontal. Approxim..
A particle leaves the origin with an initial velocity v=(2.4 m/s)x , and moves with constant acceleration a=(-1.9 m/s^2)x + (3.2 m/s^2)y. What is the particle's velocity at this time?
A 0.160 kg croquet ball makes an elastic head-on collision with a second ball initially at rest. The second ball moves off with half the original speed of the first ball. What is the mass of the second ball
A brave but inadequate rugby player is being pushed backward by an opposing player who is exerting a force of 800 N on him. What force does the winning player exert on the ground to move forward if his mass plus equipment is 110 kg
A 98.0-g wooden block is initially at rest on a rough horizontal surface when a 12.6-g bullet is fired horizontally into it, determine the speed of the bullet immediately before impact
A focused magnetic field of variable strength is used to "steer" electrons in a television tube (CRT). The electrons emerge in a stream from a "gun" that has accelerated them across a potential difference. A magnetic field can deflect the beam of ..
Saturn has an equatorial radius of 6.00 107 m and a mass of 5.67 1026 kg. Compute the acceleration of gravity at the equator of Saturn
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