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A 2.5-cm-tall object is 24cm to the left of a lens with a focal length of 12cm. A second lens with a focal length of 8.0cm is 40cm to the right of the first lens.
A) Calculate the distance between image and the second lens.
B) Calculate the image height.
A 52kg ballet dancer stands on her toes during a performance with four square inches (26cm2) in contact with the floor. What is the pressure exerted by floor over the area of contact in some cases.
How much work is done by an applied force that moves two charges of +6.8 µC that are initially very far apart to a distance of 5.3 cm apart?
A 0.810 kg particle has a speed of 2.60 m/s at point A and kinetic energy of 8.80 J at B. What is its speed at B? reply in units of m/s.
What velocity would a proton need to circle Earth 1400 km above the magnetic equator, where Earth's magnetic field is directed horizontally north and has a magnitude of 4 x10-8 T .
At a large business, employees must report to work at 7:30 A.M. The arrival times of employees is approximately symmetric and mound-shaped with mean 7:22 A.M. and standard deviation 4 minutes.
In a crash test, a 1100 kg car slams into a concrete wall at 17.1 m/s and comes to rest in 0.275 s. a)Find out the magnitude of the impulse delivered to the car.b) Find the average stopping force.
A man exerts a 328 N force to move a box across a 3.55-m patch of ice. How much work does he do on the box.
A converging lens of focal length 18 cm is 30 cm to the left of a diverging lens of focal length - 6 cm. a coin is placed 12 cm to the left of the converging lens. Find (a) location and (b) magnification of the coin's final image.
An object, at the top of a very tall building, is released from rest and falls freely due to gravity. Neglect air resistance and compute distance covered by the object between times t1 = 5.5 s and t2 = 7.9 s after it is released.
The treasure map in the figure gives the following directions to the buried treasure, Which direction should you go to reach the treasure and How far should you go to reach the treasure
A uniform electric field of magnitude 445 N/C pointing in the positive x-direction acts on an electron, that is initially at rest. The electron has moved 3.10 cm.
Vector A has a magnitude of 7m and makes an angle of 58o with the positive x axis. Vector B also has a magnitude of 7 m and is directed along negative x axis. Enter your answers in distance then angle (in degrees).
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