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A car of mass 1440 kg rests on a hydrauliclift with a piston of radius 0.26 m thatis connected to a second piston of radius 0.031 m. If the car is just barely lifted off theground, what is the force at the second piston?N
When 195 g of a substance is heated to 335°C and then plunged into a 100 g aluminum calorimeter cup containing 134 g of water at 13.0°C, What is the specific heat of the substance
a charge of 18 nc is uniformly distributed along a straight rod of length 3.0 m that is bent into a circular arc with a
An isolated conductor of arbitrary shape has a net charge of +1.20×10-5 C. Inside the conductor is a cavity within which is a point charge q = +3.60×10-6 C. What is the charge on the cavity wall?
A steel guitar string 40 cm long has a mass density of 1.5 g/m and the tension is 500 N. Find the frequency of the second harmonic
A potential difference of 4.80 V will be applied to a 43.00 m length of 18-gauge copper wire (diameter = 0.0400inches). Calculate the current. Calculate the current density. Calculate the electric field. Calculate the rate at which thermal energy wil..
At t = 0, a particle leaves the origin with a velocity of 9 m/s in the positive y direction and moves in xy plane with a constant acceleration of (-2 i -4 j) m/s2. At t = 1 s, what is the velocity of particle in the x direction.
A constant force of magnitude F makes an angle ? (measured counterclockwise) with the positive x direction as it acts on an object of mass m moving in the xy plane. How much work is done on the object by the force
Order of magnitude estimation: Using physics intuition, estimate the muzzle velocity of a projectile launcher
at what frequency would the wavelength of sound in air be equal to the mean free path of oxygen molecules at 1.03 atm
A series RCL circuit includes a resistance of 520 ohms, an inductance of 166 mH, and a capacitance of 500 nF. There is an alternating current of 660 Hz. What is the phase angle of the circuit
a uniform solid sphere is rolling without slipping along a horizontal surface with a speed of 5.50 ms when it starts up
A horizontal wire is hung from the ceiling of a room by two massless strings. The wire has a length of 0.22 m and a mass of 0.009 kg. A uniform magnetic field of magnitude 0.070 T is directed from the ceiling to the floor.
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