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An object is placed 19 cm to the left of a converging lens of focal length 25 cm. A diverging lens of focal length 12 cm is 25 cm to the right of the converging lens. Find the position and magnification of the final image.
___cm
___x
a 4-omega and 6-omega resistor are connected in series to a battery with V=12V. Calculate the power dissipated in the 6-omega resistor
A 0.19-kg stone is held 1.4 m above the top edge of a water well and then dropped into it, What is the change in gravitational potential energy of the system from release to reaching the bottom of the well
A particle with a charge of q = -5.40 nC is moving in a uniform magnetic field of vec{B}=( -1.24 T ) hat{z}. The magnetic force on the particle is measured to be vec{F}= ( -7.60×10-7 N )hat{y}. find v_x, the x component of the speed of the particl..
An airplane maintains a speed of 567 km/h relative to the air it is flying through as it makes a trip to a city 745 km away to the north.
What total impulse was imparted by these forces. Near Earth, the density of protons in the solar wind (a stream of particles from the Sun) is 12.0 cm-3, and their speed is 702 km/s. Find the current density of these protons.
Consider an optical gain medium that has two levels at E 1=1.50 eV and E 2=3.50 eV. What is the stimulated emission wavelength
A proton moving at 7.00 106 m/s through a magnetic field of magnitude 1.74 T experiences a magnetic force of magnitude 7.40 10-13 N. What is the angle between the proton's velocity and the field
Two runners of mass 70 kg and 60 kg,respectively, have a total linear momentum of 350 kg*m/s. The heavier runner is running at 2.0m/s. Examine the possible velocitis of the lighter runner.
A turntable 1.90 m in diameter rotates at 78.0 rpm . Two speakers, each giving off sound of wavelength 30.6 cm, find the greatest beat frequency the listener
A 1030 Kg car going 3.4m/s through a parking lot hits and sticks to the bumper of a stationary 1140 kg car. Find the speed of the joined cars immediately after the collision
A 120-V motor has mechanical power output of 3.00 hp. It is 88.0% efficient in converting power that it takes in by electrical transmission into mechanical power. Find the current in the motor
Skater A, with unknown mass and unknown initial speed, bumps into stationary Skater B, mass 60.0 kg. What was the mass and initial speed of Skater A
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