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A dentist uses a mirror to examine a tooth that is 0.75 cm in front of the mirror. The image of the tooth is formed 14.0 cm behind the mirror.
(a) Determine the mirror's radius of curvature. _________cm
(b) Determine the magnification of the image.
A small rubber wheel is used to drive a large pottery wheel, and they are mounted so that their circular edges touch. Calculate the angular acceleration of the pottery wheel
How many 95W light bulbs can you use in a 120V circuit without tripping a 17A circuit breaker? (The bulbs are connected in parallel, which means that the potential difference across each light bulb is V.)
The power of a certain CD player operating at 120V rms is 20.5W. determine the maximum instantaneous power
A pair of flat mirrors meet to form a right angle. A beam of light is incident on one of them at a point 11.5 cm from their point of intersection, find what is the angle of incidence at the first mirror
A satellite strikes the International Space Station traveling at a speed of 14.70 miles/ Second relative to the station. calculate the energy released by the collision
Two capacitors, of 3.2 and 4.8?F capacitance, are connected in parallel across a 300 V potential difference. Calculate the total energy stored in the capacitors
ten megawatts of electricty is to be transmitted over a power line of resistance 4 ohms. At what current will the power be transmitted
A 58-kg skater sliding due northeast at an initial speed of 1.5 m/s runs into a snow bank and comes to rest in a time interval of 0.38 s, What is change in the kinetic energy of the skater
And if the plane could fly without this pilot, how much force would the plane require to maintain the equal acceleration?
A 2030- test rocket is launched vertically from the launch pad. Its fuel (of negligible mass) provides a thrust force so that its vertical velocity as a function of time is given by, What was the initial thrust due to the fuel
Find the expression for the electric field, E? , of the ring as the point P becomes very far from the ring (x >> R) in terms of the radius R
Two sinusoidal waves, identical except for phase, travel in the same direction along a string, what is the resultant amplitude of the two waves
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