Classical Mechanics Answers

1. A fountain is produced by water that flows up the tube at 0.08 m3, and then radially through two cylindrical plates before exiting to the atmosphere. Determine the velocity and pressure of the water at point A.

2. Water flows through the 30-mm-diameter ripe at 0.002 m3/s and is ejected from the 10-mm-diameter nozzle at B. Determine the velocity and pressure of the water at point A.

3. Water flows through the transition at 0.3m3/s, which causes the water to rise within the piezometer at A to a height of hA = 350 mm. Determine the height hB.

1. Water flows into the rectangular tank through pipes A and B, with velocities of 4 m/s and 2 m/s, respectively. Determine the rate at which the surface of the water is rising. Ignore the effect of gravity on the falling water.

2. The water in the cylindrical storage tank is being drained using a pump. If the water is pumped out of the tank at 0.2 m3/s, determine the rate at which the level in the tank is descending.

1. The unsteady flow of glycerin is such that at A it has a velocity of VA = (5t1/2) m/s, where t is in seconds. Determine the acceleration of a fluid particle located at x = 0.3 m when t = 1 s. Hint Determine V = V(x,t), then find the material derivative.

2. The cylindrical plunger traveling at VP = (0.004t1/2) m/s, where t is in seconds, injects a liquid plastic into the mold to make a solid ball. If d = 50 min, determine the amount of time needed to do this. The volume of the ball is V = 4/3(pi)(r3).

3..The cylinder is pushed down into the tube at a rate of V = 5 m/s. Determine the velocity of the liquid as it rises in the tube.

The diameter of the large piston of a hydraulic press is 20 cm, and the area of the small piston is 0.50 cm2. If a force of 400 N is applied to the small piston, (a) what is the resulting piston? (c) Underneath the large piston?

The car is going 30s speed of 20m/s then with the speed of 10m/s it drives 300m. more whats the middle speed of the car.

The sun has a mass of 1.99 * 10^30 and the earth has a mass of 5.98 * 10^24kg. If the force of gravity between the sun and the earth is 3.55 * 10^22N how far is the earth from the sun? What is the tangential speed of the earth around the sun?

Your search - a turntable is a uniform disk of mass 12kg and radius 0.13metres. the turntable is spinning at initial constant frequency of 33 cycles per minute. the motor is turned off and the turntable slows down to a stop in 8 seconds due to frictional torque. what is the magnitude of the frictional torque acting on the table -

​1 kg block vibrates in shm with amplitude of 15 cm and period of T = 2 s find the frequency, its maximum speed and its speed

when the displacement is 5cm, its maximum acceleration when the displacement is 5cm.

determine the force of gravitational attraction between the earth 5.98 x 10^24 kg and a 70 kg boy who is standing at sea level, a distance of 6.38 x 10^4 in from earth's center.

A particle A of mass m moves on a smooth horizontal table and is connected by a light

inextensible string passing through a smooth hole O in the table to a particle B of the

same mas; m, which moves along the vertical through O. Initially B is at rest and a is the

distance from A to O, moving with velocity "sqrt{ga\/3}" perpendicular to O A.

What is the kinetic energy of the system?