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Elizabeth is nearsighted. Without glasses, she can see objects clearly when they are between 15.0 cm and 90.0 cm away from her eyes. Her glasses are designed to be worn 2.00 cm from her eyes, and have a focal length so that objects at infinity produce images at her far point. When she is wearing these glasses, how close to her eye can an object be before it appears out of focus?
q1. a planet of mass 4.00 1025 kg is in a circular orbit of radius 3.00 1011 m around a star. the star exerts a force
After solving a difficult physics problem, an excited student throws his book straight up. It leaves his hand at 3.7 m/s from 1.5 m above the ground. How much time does it take until the book hits the floor?
A uniform thin rod of length 0.40 m and mass 3.0 kg can rotate in a horizontal plane about a vertical axis through its center. what is the bullet's speed just before impact
In Niels Bohr's 1913 model of the atom, the electron is in a circular orbit around a nucleus. What is the magnitude of the magnetic moment due to the electron's motion
A nozzle with a radius of 0.250 cm is attached to a garden hose with a radius of 0.950 cm, Calculate the maximum height to which water could be squirted if it emerges from the nozzle
Two vectors A and B have components (0, 1) and (-1, 3), respectively. What are the components of the sum of these two vectors
The coefficients of static and kinetic friction between a 67 kg box and a horizontal surface are 0.56 and 0.32, respectively. Illustrate what is the acceleration of the object if a 335 N horizontal force is applied to the box?
Carol and robin share a house. to get to work carol walks north 1.5 km while robin drive west 7.5 km. How far part are their work place
Two particles of masses m1 and m2 are joined by a massless spring of natural length L and force constant k. Find the positions of the two masses at any subsequent time t
A circuit consists of a 6.0V battery, a 37-mH inductor, and four 55 ohm resistors. Find the characteristic time for this circuit
A 0.954-kg toy car is powered by four AA batteries (6.00 V total) connected directly to a small DC motor. compute the average current supplied to the car\'s motor?
In a head on collision, a car stops in .10 seconds from a speed of 14 meters per second. The driver has a mass of 70 kg, and is, fortunately, tightly strapped into his seat. What force is applied to driver by his seat belt during that fraction of ..
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