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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
Many stores have "security mirrors" mounted on ceilings or in corners so that employees can keep watch over large parts of the store, what is the magnification of the image
If the spring is pulled until it stretches 2.40cm and the pack remains at rest, what is the force of friction exerted on the backpack by the table
a piston of mass m can move without friction inside a long vertical cylinder sealed from the bottom and opened from the
At what height above the surface of the earth does the balloon have a velocity of 8.10 m/s.
A door made of a uniform piece of wood measures 1 m by 2 m and has a mass of 18 kg. Find the force (mag and direction) that the door exerts on the hinge
A puck with mass m = 0.14kg slides along a frictionless horizontal surface at v = 5.9 m/s. It hits and sticks to the free end of a spring with k = 15 N/m. Find the period of the subsequent simple harmonic motion
Each railroad car has a mass of 62000 kg. Nine coupled railroad car moving with a speed of 2.8 m/s collide, What is the speed of all fourteen cars after the collision
Electrons which were initially at rest were subjected to a continuous force of 2×10-12 newton along the entire length of two miles (one mile is 1.6 kilometers) and reached speeds very near the speed of light.
Two metal spheres, each of mass 20 g and initially at rest, are dropped from a height of 10 m in an evacuated chamber. Find the difference in final speeds of the two spheres
Two point charges are placed on the x axis as follows: chargeq1= -1.50 nC is located at x=.200m, and a charge q2= +5.00 nC is atx=-.300m. What are the magnitude and direction of the net forceexerted bu these two charges on a negative point charge q3=..
A projectile is fired at an upward angle of 45 degrees from the top of a 265 m cliff with a speed of 350 m/s. Illustrate what will be it's speed when it strikes the ground below?
A crate of mass 9.4 kg is pulled up a rough incline with an initial speed of 1.46 m/s. The pulling force is 94 N parallel to the incline, which makes an angle of 20.2° with the horizontal. The coefficient of kinetic friction is 0.400, and the crat..
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