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An individual is nearsighted; his near point is 13.0 cm and his far point is 43.0 cm.
a) What lens power is needed to correct his nearsightedness?
b) When the lenses are in use, what is this person's near point?
A crate of mass 10.6 kg is pulled up a rough incline with an initial speed of 1.54 m/s. The pulling force is 108 N parallel to the incline, What is the change in kinetic energy of the crate
The tungsten filament of a certain 100 W light bulb radiates 2.50 W of light. (The other 97.5 W is carried away by convection and conduction.) The filament has surface area of 0.270 mm2 and an emissivity of 0.950. Find the filament's temperature. (Th..
A rocket reaches Low Earth Orbit of 300km above ground in 6 minutes. Estimate average acceleration of the rocket. how long would it take it to reach the Moon
a person is to be fitted with bifocals. she can see clearly when the object is between 30 cm and 1.5 m from the eye.
Constructive interference of sound waves occurs when:
A 7 kg bowling ball moves at 2.15 m/s. How fast should a 2.40 g Ping-Pong ball move so that the two balls have the same kinetic energy.
The drawing shows two situations in which charges are placed on the x and y axes. find the magnitude of the net electric field at the origin
What is a stopping distance
What is eccentricity of the transfer ellipse
josh is painting yellow stripes on a road using a paint roller. to roll the paint roller along the road josh applies a
consider a heat pump which is used to cool down a home during the summer. its coefficient of performance in cooling
Explain what was observed with the horizontal motion of the man and the boat in terms of Newton's Laws of Motion.
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