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An optometrist prescribes contact lenses that have a focal length of 56.0 cm. Where is the unaided near point of the person located, if the lenses are designed so that objects no closer than 32.0 cm can be seen clearly?
In a parking lot, an SUV of mass 2000 kg driving at 5 m/s collides head on with a sports car of mass 1000 kg driving in the opposite direction. Determine the velocity of the sports car before the collision
After a tornado, a 0.55-g straw was found embedded 2.8 cm into the trunk of a tree. If the average force exerted on the straw by the tree was 70 N, what was speed of the straw when it hit the tree .
An electron is released from rest at the negative plate of a parallel plate capacitor. How fast is the electron moving just before it reaches the positive plate
A ball of mass 0.300kg that is moving with a speed of 5.4m/s collides head-on and elastically with another ball initially at rest. Calculate the velocity of the target ball after the collision
1.define a lie in the strict or formal sense.2.explain what is meant by communication?3.what is the principal purpose
In order to view the craters of the Moon, you construct a refracting telescope from a lens with focal length 90.7 cm as its objective and a 11.5-cm focal length lens as its eyepiece
A 70Kg diver steps off a 10 m tower and drops from rest straight down into the water. If he comes to rest 5.0 m beneath the surface, decide average resistive force exerted on him by the water.
Determine the effective coefficient of kinetic friction between the wheel and the wet rag.
Three charged particles are placed at corners of an equilateral triangle of side 1.20m. The charges are + 7.0 mc,-8.0 mc and -6.0 mc compute the magnitude and direction of the net force on each due to the other two.
If an amount of heat equal to magnitude of the work done by friction is absorbed by the crate of fruit and the fruit reaches a uniform final temperature, what is its temperature change DeltaT.
A girl delivering newspapers covers her route by traveling 10.00 blocks west, 4.00 blocks north, What is her resultant displacement
The collision between a hammer and a nail can be considered to be approximately elastic. Estimate the kinetic energy acquired by a 11-g nail
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