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A hydraulic lift in a garage has two pistons: a small one of cross-sectional area 4.10cm2 and a large one of cross-sectional area 260cm2 . If this lift is designed to raise a 3500- car, what minimum force must be applied to the small piston?
A car of mass 1450 kg traveling at 26 m/s is at the foot of a hill that rises 140 m in 2.4 km. Find the average power delivered by the car's engine
A spring of spring constant k=12.50 N/m is hung vertically. A 0.5000 kg mass is then suspended from the spring. What is the displacement of the end of the spring
While running, a person dissipates about 0.60 J of mechanical energy per step per kilogram of body mass. If a 64 kg person develops a power of 65W throughout a race, how fast is the person running? Assume that a running step is 1.5 m long.
for water nred1.331 and nblue1.340. what are the underwater angles of refraction for the red and blue components of a
an rl circuit has a 5 ko resistor and a 1 mh inductor. this circuit is driven by a 100 hz sine wave with 1 v amplitude.
Margaret walks to the store using the following path: .500 miles west, .200 miles north, .300 miles east. What is her total displacement
The potential at the center of a uniformly charged ring is 52 kV, and 15 cm together the ring axis the potential is 41 kV. Find the ring's radius and its total charge.
A cylinder is inscribed in a right circular cone of height 2.5, What are the dimensions of such a cylinder which has maximum volume
After a completely inelastic collision, two objects of the same mass, Find the angle between the initial velocities of the objects
A person with a remote montain cabin plansto install her own hydroelectric plant. A nearby stream is 3.00mwide and 0.500m deep. Find the power she can generate
White light is shone on a very thin layer of alcohol (n = 1.36), and above the alcohol layer, interference maxima for two wavelengths (and no other in between) are seen: one violet wavelength of 410 nm, and one red wavelength of 670 nm. What is the t..
The speed of a certain electron is 350 km/sec. If the uncertainty in its momentum is 0.010%, what uncertainty in its location must be tolerated
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