ok. I used the equation given and solved for Fp. I had (242.98)(pi*(0.03955)^2))/(pi)*(0.00655)^2=Fp=8858.92 N, which is also incorrect.
what am I doing wrong?
Force necessary to support mass on Hydraulic Jack?
Homework Statement
Piston 1 in the figure has a diameter of 1.31 cm. distance of 2 in
Piston 2 has a diameter of 7.91 cm. distance of 10 in
In the absence of friction, determine the force F, necessary to support an object with a mass of 904...
Force on an oscillating mass?
Homework Statement
A 2.10 kg mass on a frictionless horizontal track is attached to the end of a horizontal spring whose force constant is 6.00 N/m. The mass is displaced 3.09 m to the right from its equilibrium position and then released, which initiates simple...
ok. I found the equation for the frequency to be f=w/2(pi) and w=sqrt(k/m)
so, w=sqrt(103950)/297 =18.7 and f=18.7/(2)(pi) =2.97 which is also wrong. ??
Frequency of a Car's Vibrations?
Homework Statement
When four people with a combined mass of 297 kg sit down in a car, they find that the car drops 2.8 cm lower on its springs. Then they get out of the car and bounce it up and down. What is the frequency of the car's vibration if its empty...
Initial KE= (1/2)(0.799)(0.910)^2= 0.33082595 J
Final KE= VF= 0 m/s so, (1/2)(0.799)(0)^2=0
0.33082595-0=-0.33082595 J which isn't the correct answer. What am I missing in the Final KE?
Determine Work done on the puck??
Homework Statement
The puck in the figure has a mass of 0.799 kg. Its original distance from the center of rotation is 76.2 cm, and the puck is moving with a speed of 91.0 cm/s. The string is pulled downward 38.2 cm through the hole in the frictionless table...
Magnitude of Acceleration after initial impulse?
Homework Statement
A block with a mass of m = 3.04 kg is at rest on an incline. The angle of the incline is θ = 20.3° with respect to the horizontal. The coefficient of static friction between the object and the incline is μs = 0.645, the...