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An object is placed 20 cm to the left of a converging lens of focal length 27 cm. A diverging lens of focal length 10 cm is 25 cm to the right of the converging lens. Discover the position and magnification of the final image
Your friend's car is parked on a cliff overlooking the ocean on an incline that makes an angle of 19.9 below the horizontal. Find the car's position relative to the base of the cliff
The balloon is filled with helium at a density of 0.181 kg/m3. At this density the balloon is spherical with a radius of 0.400 m. If the filled balloon is fastened to a vertical line,
What mass of stone is necessary if the temperature is not to drop below 18.5°C overnight. Sunlight shining in during the daytime is absorbed by the floor, interior walls, and objects in the room, raising their temperature to 37.5°C.
A frictional force of 320 N acts on the rim of a 1.4 m diameter wheel to oppose its rotational motion. What is the torque about the wheel's central axis
A loop of wirein the plane of the floor has a clockwise current of 7.78A. The radius of the loop is 19.7cm. Use the Biot SavartLaw to calculate the magnetic field at the center of the loop. What is the directionof the magnetic field at the center? Ex..
take a ride on the physics phantasm the newest frictionless roller coaster at six phlags. the ride starts off from rest
A 1.80-kg rock is released from rest at a height of 18.0 m. Ignore air resistance and determine(a)the kinetic energy at 18.0 m,(b)the gravitational potential energy at 18.0 m,(c)the total mechanical energy at 18.0 m,(d)the kinetic energy at 0 m,(e)th..
makes an angle of 45 degrees with the horizontal by an external force. The object moves up the incline a distane 3m. What is an increase in the gravitational energy of the object
Electrons with a speed of 1.3×10^6 m/s pass through a double-slit apparatus. Interference fringes are detected with a fringe spacing of 2.8mm. What will the fringe spacing be if the electrons are replaced by neutrons with the same speed in μm? What s..
An electric field is defined in three-dimensional space by the equation
Gas in a container is at a pressure of 1.5 atm and a volume of 4 m3 . What is the work done by the gas if (a) it expands at constant pressure to twice its initial volume and (b) it is compressed at constant pressure to one quarter of its initial volu..
A potential difference of 12 V is placed across the ends of a wire of resistance 2.625times10-3 Ohm. If the density of electrons in the wire is 6times1028 electrons/m3 and the cross sectional area of the wire is 2times10-5 m2, what is the drift veloc..
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