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A converging lens has a focal length of 0.080 m. An objectis located 0.040 m to the left of this lens. A second converginglens has the same focal length as the first one and is located0.120 m to the right of it. Relative to the second lens, where isthe final image located?
A body in free fall reaches the ground in 5 s. From what height in meters was it dropped
Two point particles of charge Q1 = 43 µC and Q2 = 89 µC are found to have a potential energy of 38 J. What is the distance between the charges
A 50 kg ballet dancer stands on her toes during a performance with four square inches (26.0 cm2) in contact with the floor. What is the pressure exerted by the floor over the area of contact (a) if the dancer is stationary and (b) if dancer is lea..
What would be the final temperature of 100g of 16°C water when 107 g of 40°C iron nails are submerged in it? (The specific heat of iron is 0.12 cal/g °C. Here you must equate the heat gained by the water to the heat lost by the nails.)
The space shuttle is in a 300km -high circular orbit. It needs to reach a 610km -high circular orbit to catch the Hubble Space Telescope for repairs, How much energy is required to boost it to the new orbit
A block is dropped onto a spring with a spring constant, k, of 27 n/m. the block has a speed of 2.2 m/s just before it strikes the spring. what is the increase in potential energy of the spring
A recent tomb has been unearthed in Egypt that shows the set of wall paintings and hieroglyphics of stars falling to and rising above the horizon over the course of the year (these stars served as sentinels for the pharaoh's passage through the un..
If a drop of mass 1.49061e-12 kg remains stationary in an electric field of 1.1e6 N/C, How many extra electrons are on this particular oil drop (given the presently known charge of the electron
Two electrons are fixed 2.00 centimeters apart. Another electron is shot from infinity and comes to rest midway between the two fixed electrons. Find the initial speed of the electron
One way to monitor global warming is to measure the average tempo f the ocean . Researches are doin ghtis by measuring the time ittakes sound pilses to travel underwater over large distance.
An elevator can lift a 107 N aircraft a distance of 26 meters in 11 s. What is the power output of the elevator
When four people with a combined mass of 290 kg sit down in a car, they find that the car drops 0.50 cm lower on its springs. What is the frequency of the car's vibration
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