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A thin double convex lens is to focus the image of an object onto a screen so that the image is life-sized. The lens has equal radii of 76 cm and the refractive index is n = 1.4. (a) What is the distance d from image to screen? (b) What is the total distance L between object and image?
Two tanks are engaged in a training exercise on level ground. The first tank fires a paint-filled training round with a muzzle speed of 237.5m/s, Find the distance between the tanks when the round was first fired
You want to support a sheet of fireproof paper horizontally using only a vertical upward beam of light spread uniformly over the sheet. There is no other light on this paper. The sheet measures 22.0cm by 28.0 cm and has a mass of 1.50g.
The maximum current in a superconducting solenoid can be as large as 3.61 kA. what is the magnitude of the magnetic field it produces
A ball of mass 0.40 kg moves horizontally at a velocity of 25.0 m/s. What was the average force exerted on the ball by the wall
Compute the value of Ra in terms of R1 and R2. how much energy must be added to a 2-kilogram pile of it to increase its temperature from 40*c to 50*c.
a jet engine suspended beneath the wing of an airplane. The weight of the engine is 11800 N, find the magnitude of the torque due to the weight
As the drawing illustrates, two disks with masses m1 and m2 are moving horizontally to the right at a speed of v0. They are on an air-hockey table, find the velocity of disk 2 at that moment
A satellite orbits at a distance from the Earth's center of about 4.80 Earth radii and takes 14.8 hours to go around once, What is its orbital velocity
Coherent light from a sodium-vapor lamp is passed through a filter that blocks everything except for light of a single wavelength. What is the wavelength of the light that falls on the slits
The eyepiece of a refracting astronomical telescope (see the figure) has a focal length of 8.75 c. What is the angular magnification of the telescope
A research submarine has a 10-cm-diameter window that is 8.5cm thick. What is the submarine's maximum safe depth in salt water
The electric potential energy stored in the capacitor of a defibrillator is 58 J, What is the potential difference across the capacitor plates?
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