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An object acted on by three forces moves with fix velocity. One force acting on the object is in the positive x direction and has a magnitude of 7.7 N; a second force has a magnitude of 4.3 N and points in the negative y direction. Find the magnitude and direction of the third force acting on the object.
N
° (counterclockwise from the +x axis)
A device uses a Stirling cycle on 433 moles of a monatomic ideal gas between two reservoirs with temperatures of 416 K, How much energy does this device transfer into the hot reservoir
The turntable of a record player rotates initially at 33rev/min and takes 20 s to come to rest. what is the angular acceleration of the turn table
A liquid (? = 1.65 g/cm3) flows through two horizontal sections of tubing joined end to end. In the first section, the cross-sectional area is 10.0 cm2, Calculate the smaller section's pressure
a beam of light is incident from air on the surface of a liquid. if the angle of incidence is 25.5deg and the angle of
A proton is released from rest at the positive plate of a parallel-plate capacitor, What will be the proton's final speed if the experiment is repeated with double the amount of charge in each capacitor plate
A circus performer stretches a tightrope between two towers. He strikes one end of the rope and sends a wave along it toward the other tower. He notes that it takes the wave 0.730 s to reach the opposite tower, 20.0 m away.
An air-filled parallel-plate capacitor has plates of area 2.70 cm2 separated by 2.00 mm. The capacitor is connected to a 18.0-V battery. What is the magnitude of the uniform electric field between the plates
A rope and two masses are suspended from the ceiling of an elevator which is accelerating downward at 2.8 m/s^2. find the tension in the rope connecting the two masses
An artillery shell is fired with an initial velocity of 300 m/s at52.0° abovethe horizontal. To clear an avalanche, it explodes on amountainside 39.5 s after firing. What arethe x and y components of the shell where itexplodes, relative to its firing..
A spherical capacitor contains a charge of 3.50nC when connected to a potential difference of 220V. Calculate the radius of the inner sphere
a 5.0 kg block slides from rest down a frictionless slope, then enters a flat area where Uk is 0.50. What is the speed of the block at the base of the slope
Give the center of mass for a water molecule. The distancebetween a hydrogen atom and the oxygen atom is .91 angstroms andthe angle between the two O-H bonds is 105o
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