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A luminous object is 4.80m from a wall. You are to use a concave mirror to project an image of the object on the wall, with the image 2.23 the size of the object.
How far should the mirror be from the wall?
What should its radius of curvature be?
a winch at point b is used to slide a box up a chute cd in a warehouse.the box wieghs 530lb and fits loosely against
Spinal fluid pressure can be measured using a spinal tap in which a needle is inserted in the patient's lower back with the patient sitting upright on an examination table. The pressure due to the weight of the spinal fluid (given that its density..
A flat stack of two materials, the first of index of refraction 1.52 and thickness 2 mm, and the second of index of refraction 1.63, What is the size (radius) of the circle of light
A transformer has 3,840 turns in the secondary. The inputvoltage is 110V, the output current is 6.5A. the input current is0.5A. Calculate the output voltage
River Pascal with a volume flow rate of 6.1×105L/s joins with River Archimedes, which carries 1.15×106L/s , What is the speed of the water in the Bernoulli River
a plane is flying at 25 degree north of west at 190kmh and encounters a wind from 15 degree north of east at 45kmh.
Charges of 4.0 µC and -6.0 µC are placed at two corners of an equilateral triangle with sides of 0.10 m. At the third corner, what is the electric field magnitude created by these two charges
The National Aeronautics and Space Administration (NASA) studies the physiological effects of large accelerations on astronauts. Some of these studies use a machine known as a centrifuge.
A 1200 kg automobile is moving at 30 m/s at a height of 5.0m above the bottom of a hill when it runs out of gasoline. what is the speed of that car at the lowest point
An artificial satellite circles the Earth in a circular orbit at a location where the acceleration due to gravity is 5.24 m/s^2.
Two small insulating spheres with radius 4.00×10-2 are separated by a large center-to-center distance of 0.595. One sphere is negatively charged, with net charge -2.40, and the other sphere is positively charged, with net charge 3.70. The charge i..
a block of mass 0.222 kg is placed on the end of a spring which has a stiffness of 150. nm. it is pulled down 2.60 cm
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