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A small object is 10 cm to the left of a converging lens (f = +5 cm), and a second diverging lens (f = -3.1 cm) is 2.8 cm to the right of the first. Find the position and magnification of the final image by calculation.
position=
magnification=
The pressure of an ideal gas remains at 200 Pa while 1000 joules of heat are removed and its internal energy increases by 2000 joules. What was the change in the volume of the gas
A heavy ball with a weight of 100N (m= 10.2 kg) is hung from the ceiling of a lecture hall on a 4.5-m-long rope. What is the tension in the rope at that point
If the pressure of the 3 cm3 volume is reduced to 2.0 10-11 Pa (an extremely good vacuum) while the temperature remains constant, how many moles of gas remain in the container
A rectangular loop of wire that is 36 cm wide and 25 cm long lies in the x-y plane in a region where the magnetic field is B = 1.1 T and directed at an angle of 63° with the z axis
A thin 320g disk with a diameter of 5.20 cm rotates about an axis through its center with 0.705J of kinetic energy. What is the speed (in m/s) of a point on rim.
A 3.00kg stone is sliding to the right on a frictionless horizontal surface at 5.50m/s when it is suddenly struck by an object that exerts a large horizontal force on it for a short period of tim, What impulse does this force exert on the stone
If you have 1.96 * 10^9 KWH and the value of energy is $0.10 per KWh, what is the value of electrical energy produced
A fire truck has a siren with that generates a sound with a frequency of 8562 Hz. what frequency will you observe
Suppose the peak of a particular star's spectrum occurs at about 6000 Å (Angstrom). (a) Use Wien's law to calculate the star's surface temperature. (b) If this star were a factor of four hotter, at what wavelength would its spectrum peak? In what ..
A catapult launches a test rocket vertically upward from a well, giving the rocket an initial speed of 80.8 m/s at ground level. What is its maximum altitude
A camera with interchangeable lenses is used to photograph a distant object. The angular size of the object is 19 degrees. What is the longest focal length lens
An ac generator supplies a peak (not rms) voltage of 120.0 V at 60.0 Hz. What is the average power dissipated in the circuit
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