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Problem: To water the yard, you use a hose with a diameter of 3.9 cm. Water flows from the hose with a speed of 1.3 m/s. If you partially block the end of the hose so the effective diameter is now 0.55 cm,
Part A: With what speed does water spray from the hose?
I need help to find with what speed does water spray from the hose.
A diver of mass 68 kg stands at the end of a uniform diving board of mass 16 kg and length 4:5 m, Calculate the magnitudes of the forces exerted by the pedestals on the diving board
An electron and a proton are each placed at rest in an electric ?eld of 334 N/C. What is the velocity of the electron 46.2 ns after being released
Water flows over a section of Niagara Falls at the rate of 1.1 x10^6 kg/s and falls 55 m. How much power is generated by the falling water.
Cartesian coordinate system is characterized by three orthogonal unit vectors (orts) i, j, and k, which are parallel to the x-, y-, z-axis, respectively. What are the coordinates of these vectors
A 97-kg astronaut and a 1100-kg satellite are at rest relative tothe space shuttle which is located 125 m away. how long does it take the astronaut to reach the shuttle
A spaceship is moving toward earth at .6c. It fires arocket away from the earth at .4c relative to the spaceship. What is the velocity of the rocket relative to the earth
What's the quickest way to approach this problem? A car is traveling at 80 km/h along the highway. A second car is located 1 km behind, but traveling at 100 km/h. How long does it take for the second car to pass the first?
Visualize the one cubic centimeter as formed by stacking up identical cubes, with one copper atom at the center of each. Conclude the volume of each cube.
Two masses are joined by a massless string. A 27-N force applied vertically to the upper mass gives the system a constant upward acceleration of 3.5m/s^2. If the string tension is 19-N , what is the bigger of two masses
Under the influence of its drive force, a snowmobile is movingat a constant velocity along a horizontal patch of snow. When thedrive force is shut off, the snowmobile coasts to a halt.
An unstable particle with a mass equal to 3.34 ? 10-27 kg is initially at rest. The particle decays into two fragments that fly off with velocities of 0.988c and -0.865c, respectively. Find the masses of the fragments
The electric motor in a toy train requires a voltage of 3.1V .Find the ratio of turns on the primary coil to turns on the secondary coil in a transformer that will step the 110V household voltage down to 3.1V .
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