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a thin lens of focal length 30.0 cm and is used to form an image that is twice the size of the object. Find the object position if the image is
(i) real
(ii) virtal.
An object is placed 6.00cm to the left of a converging lens of focal length 8.00 cm. obtain the position of the final image
Imagine two 5.0 g bags of protons, one at the earth's north pole and the other at the south pole. Calculate the electrical repulsion
Is the collision completely elastic
A 2.20 kg object is suspended from a spring with k = 18.00 N/m. The mass is pulled 0.35 m downward from its equilibrium position and allowed to oscillate. What is the highest kinetic energy of object.
A 7.11-kg box is sliding across the horizontal floor of an elevator. find the kinetic frictional force that acts on the box
A 53 kg woman and a 80 kg man stand 13 m apart on frictionless ice. If they hold on to two ends of a rope, and the man pulls on the rope so that he moves 3m, how far from the woman will he be now.
A small fan has blades that have a radius of 0.0600 m. When the fan is turned on, the tips of the blades have a tangential acceleration of 19.6 m/s2as the fan comes up to speed
In the rainy season, the amazon flows fast and runs deep. In one location, the river is 23m deep and moves at a speed of 4.0m/s toward the east. what is the potential (magnitude and sign) at the surface
At t=0 a grinding wheel has an angular velocity of 24.20 rad/s. It has a constant angular acceleration of 24.2 rad/s^2 until a circuit breaker trips at t = 1.2 seconds.
A rotating wheel requires 3.03-s to rotate through 37.0 revolutions. Its angular speed at the end of the 3.03-s interval is 99.0 rad/s
The Space Shuttle travels at a speed of about 7.60 103 m/s. The blink of an astronaut's eye lasts about 120 ms. How many football fields (length = 91.4 m) does the Shuttle cover in the blink of an eye?
If the skier is moving at 13 m/s at the bottom of the trail, calculate the total work done by friction and air resistance during the run
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