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If a piece of photographic film is placed at the location of a real image, the film will record
the image. Can this be done with a virtual image? How might one record a virtual image?
A spherical air bubble in water can function as a lens. Is it a converging or diverging lens? How is its focal length related to its radius?
On a very hot day in Manila, an oil tanker loaded 50,000 liters of fuel. It traveled to Baguio, which was 20 K colder than Manila. How many liters where delivered to Baguio? (๐ฝ๐๐๐ ๐๐๐๐๐=0.95 ๐ฅ 10โ3)
Using the equation for acceleration due to gravity (g), compute the
approximate value of acceleration due to gravity with the given values: mass of Earth = 6.0 x 10^24kg and radius of Earth = 6.37 x 10^6 m. Compare the value you had with the
acceleration due to gravity we use which is 9.8 m/s^2
Complete solution
1. Copper shot (0.100 kg) is heated in boiling oil. After this, it is submerged in old water (0.300 kg at 20 ยบC). If the waterโs temperature turned 23.0 ยบC, what was the temperature of the hot oil?
2. What is the new length of a bar made of pure gold at 75 ยบC if it has a length 0.3 meters at 10 ยบ C?
3.At what temperature will the Celsius and Fahrenheit scale have the same value?
One day, Professor brought a box that contains 6 yellow and 7 green marbles in his class in Statistics and Probability subject. He asked one student to draw three marbles, with replacement, in the box. What is the probability when the student drawn 1 yellow and 2 green marbles? Convert your answer in decimals with three (3) significant figures.
By how much will this area (in square decimeters) increase during a hot summer day on the month of May when the temperature is 120.20F?
A shipment of 25 similar laptop computers to a retail outlet contains 5 that are defective. If a school makes a random purchase of 3 of these computers, find the probability when the school accidentally purchased 1 defective and 2 are nondefective computers? Convert your answer in decimals with three (3) significant figures.
When a T. rex pursues a jeep in the movie Jurassic Park, we see a reflected image of the T. rex via a side-view mirror, on which is printed the (then darkly humorous) warning: โObjects in mirror are closer than they appear.โ Is the mirror flat, convex, or concave?
A penguin waddles along the central axis of a concave mirror, from the focal point to an effectively infinite distance.(a) How does its image move?(b) Does the height of its image increase continuously, decrease continuously, or change in some more complicated manner?
