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An object is initially placed on the optical axis 27.1 cm to the left of a convex lens that has a focal length of 14.7 cm. The image is real and inverted. If the object is moved toward the lens to a point 8.8 cm away, what is the new image distance (location on the optical axis)?
A 3 kg box rests on a horizontal surface. An external force 40 N is applied to the box, 30 degrees inclined from top. the box starts its motion from the rest. Find the final speed of the box after it moves 5 meters to the right
The density of a 2.45-m long rod can be described by the linear density function ?(x) = 121 g/m + 13.5x g/m2. One end of the rod is positioned at x = 0 and the other at x = 2.45 m. Determine the total mass of the rod
In the park, several children with a total mass of 240 kg are riding a merry-go-round with a rotational inertia of 1500 Kg*ms2 and a radius of 2,2m. what is the rotational velocity after the children move tot he center, igoring frictional torque
When a certain element is bombarded with high-energy electrons, Determine the atomic number Z of the element.
A ball thrown upward returns to the same level after 4s in the air. How long would that ball take to reach the same level
A 14.0-m uniform ladder weighing 510 N rests against a frictionless wall. The ladder makes a 63deg angle with the horizontal. what is the coeffecient of static friction between ladder and ground
A circular area with a radius of 7.80cm lies in the x-y plane. What is the magnitude of the magnetic flux through this circle due to a uniform magnetic field B = 0.229T that points in the +z direction
Calculate the magnetic field at the observation location. The space shuttle releases a satellite into the circular orbit 565 above the Earth. How fast must the shuttle be moving (relative to Earth) when the release occurs.
A 1kg ball released from horizontal attatched to a 2.5 m string collides ellastically with a 2 kg block at rest. what is the speed of the block after the collision.
A Van de Graaff accelerator is essentially a parallel plate capacitor. Such a machine is changed by an electrical potential of 2.5 x 10^6 volts. What is the energy density stored in the field
Estimate how far from a piece of paper you must hold the lens to produce a sharp image of a streetlight 40 ft. Overhead.
A source delivers an AC voltage of the form ?v = 96.2 sin (66?t), obtain the frequency of the source
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