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A mechanic is raising a car with a hydraulic lift. The smaller piston has radius of 15 cm while larg piston has radius of 85 cm. To raise a 1800 kg car 1.4m how much forc must mechanic apply to piston.
Through what distance must the mechanic move the small piston?
A solenoid contains 780 coils of very thin wire evenly wrapped over a length of 17.5cm . Each coil is 2.50cm in diameter. what is the magnetic field at its center
Two long straight parallel wires are 12cm apart. Determine the force on wire A due to wire B, and the force on wire B due to wire A.
An observer moving at a speed of 0.860 c relative to a rod (Fig. P26.14) measures its length to be 2.00 m, What is the orientation angle in a reference frame moving with the rod
A transformer has an input coil with Nin = 400 turns and Nout = 1050 turns. If the voltage across the input coil has an amplitude of 2.1 V, what is the voltage across the output circuit?
In Denver, children bring their old jack-o-lanterns to the top of a tower and compete for accuracy in hitting a target on the ground. What is the launch speed needed to hit the bulls-eye
Light of wavelength 650 nm falls on a 0.31 mm wide slit and forms a diffraction pattern on a screen 1.5 m away. Find the width of the central maximum
What is speed of the wind what is coefficient of static friction
A child in a boat throws a 5.600 kg package out horizontally with a speed of 11.00 m/s. Determine the velocity of the boat immediately after, assuming it was initially at rest. The mass of the child is 23.00 kg and that of the boat is 45.00 kg.
A horizontal magnetic field of 2.0×10?4 T is at an angle of 25 to the direction of the current in a straight, horizontal wire 75 cm long. what is the magnitude of the force on the wire
A 300 N box is placed on a frictionless inclined plane that makes a 22.0° angle with the horizontal. What is the normal force of the ramp on the box
A playground merry-go-round ofradius 2.00 m has a moment of inertia I = 325 kgm2 and isrotating about a frictionless vertical axle. What is the angular speed of the system when the child reaches the edge
a 900 kg crate is on a rough surface inclined at 30 degrees. a constant force p7200n is applied horizontally to the
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