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Two converging lenses, each of focal length 15.2cm, are placed 40.9 cm apart, and an object is placed 30.0 cm in front of the first lens. Where is the final image formed?
What is the magnification of the system?
Two astronauts are 1.40 m apart in their spaceship. One speaks to the other. The conversation is transmitted to earth via electromagnetic waves. How far away from the earth is the spaceship
Two objects attract each other gravitationally with a force of 2.3×10-10 when they are 0.65 apart. Their total mass is 5.0 . Find out their individual masses.
Water has a latent heat of vaporization of 2257 kJ/kg. Steam is used to heat a copper tube of 0.264 kg from 20 degrees C to 100 degrees C. All the heating is due to the heat released from the steam condensing.
A common flashlight bulb is rated at 0.300 A and 3.00 V (the values of the current and voltage under operating conditions). If the resistance of the bulb filament at room temperature (20°C) is 2.60 ?, what is the temperature of the filament when the ..
What is the maximum value of the electric field in an electromagnetic wave whose average intensity is 3.75W/m^2 ?
A charged particle moves through a velocity selector at a constant speed in a straight line. Find the charge-to-mass ratio of the particle
A farsighted man uses eyeglasses with a refractive power of 1.85 diopters. Wearing the glasses 0.02 m from his eyes, he is able to read books held no closer than 0.28 m from his eyes. He would like a prescription for contact lenses to serve the same ..
Two small, positively charged spheres have a combined charge of 5.02×10-5 C. what is the charge on the sphere with the smaller charge
A 2.0 kg block is kicked up a wooden ramp that is inclined at a 30? angle to the horizontal. How long does the entire up and down trip take
In an amusement park ride called The Roundup, passengers stand inside a 16.0m -diameter rotating ring. how much force does the ring push on her at the top of the ride
A massive steel cable drags a 20.0kg block across a horizontal, frictionless surface. A 115N force applied to the cable causes the block to reach a speed of 4.30m/s in 2.30s. What is the difference in tension between the two ends of the cable?
Which physical parameter, more than any other, most probably controlled the early evolution of the planetary system and dictated the characteristics of the planets that eventually formed?
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