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Question: A barber chair rests on a hydraulic cylinder with 10 cm in diameter. A pedal input drives the cylinder having a sectional area of 10 cm2.
Part A: Calculate the minimum force that must be done on the pedal to lift the seat and a client with a combined mass of 160 kg.
I need help to determine the minimum force that must be done on the pedal to lift the seat.
In a certain experiment, the pressure of a gas depends on the volume by P=aV^2+b, where a=5.0 atm/m and b = 8.5 atm. What is the work done on the gas
Equipotentials between two parallel lines with a floating circular electrode. I dont need to know the exact potentials, What is the potential of the circular electrode
High-altitude mountain climbers do not eat snow, but always melt it first with a stove. Calculate the energy absorbed from a climber's body if he eats 0.70kg of -15?C snow which his body warms to body temperature of 37?C
A tennis player swings her 1000 g racket with a speed of 15.0m/s . She hits a 60 g tennis ball that was approaching her at a speed of 15.0m/s. compute the average force that the racket exerts on the ball
An airplane is heading due south at a speed of 600 km/h. If a wind begins blowing from the southwest at a speed of 100km/h (average), Determine the velocity of the plane relative to ground
A particle with charge q is at rest when a magnetic field is suddenly turned on. The field points in the z-direction. What is the direction of the net force acting on the charged particle?
An electric charge is uniformly distributed throughout a 12cm radius non conducting sphere. what is the volume charge density of the sphere
a variable capacitor in a circuit with a 120v, 60-Hz source initially has a capacitance of .25uf. The capacitance is then increased to .4uf. What is the percentage change in the current in the circuit
If momentum were conserved in each collision, what would you expect the ratio of the total momentum before the collision to the total momentum after the collision to be?
A spaceship(Mo = 10,000 kg & Lo = 42m) is observed to be 42.2m long while traveling towards earth Determine the speed of the space ship. Determine the radio frequency emitted by the ship
two speakers spaced a distance 1.5 m apart emit coherent sound waves at a frequency of 680 hz in all directions. the
A rocket fires two engines simultaneously. One produces a thrust of 700N directly forward while the other gives a thrust of 472N at an angle 38.8? Above the forward direction. Find the magnitude of the resultant force which these engines exert on the..
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