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A 2.05 cm tall object is placed 30.0 cm to the left of aconverging lens with a focal length f1 =18.9 cm. A diverging lens, with afocal length f2 = -41.5 cm, is placed 30.0 cm to the right of thefirst lens. How tall is the final image of the object? (Enter anegative value is the image is inverted.)
An 88 kg spacewalking astronaut pushes off a 640kg satellite, exerting a 640N force for the 0.60 s it takes him to straighten his arms.
The escape speed from a distant planet is 40 km/s. If theacceleration of gravity on the planet surface is 12.5m/s2, what is the radius of the planet
A projectile proton with a speed of 350 m/s collides elastically with a target proton initially at rest. What is the speed of the projectile proton after the collision
An engine with an output of 267.0 W has an efficiency of 39.0 %. It works at 9.00 cycles/s. How much heat is rejected each cycle
THe Voyager one has a 20-W radio transmitter and is expected to transmit to 2025 when it is 25 billion km from the earth. WHat's the Diameter of a dish antenna
When a 9.0 V battery is connected to a capacitor, it puts 8.00e-4 C of charge on the capacitor. What is the unknown battery's voltage
A solenoid of radius 1.1 cm produces a magnetic field at its center is 0.28 T. What is the magnetic flux by the center of the solenoid.
A common flashlight bulb is rated at 0.270 A and 3.36 V (the values of current and voltage under operating conditions). estimate the temperature of the tungsten filament when the bulb is turned on
q1. what current is required in the windings of a long solenoid that has 1710 turns uniformly dispersed over a length
The magnitude of F is 306 newtons and it points at 93o measured counter clockwise from the positive x-axis. What is the y component (in newtons) of F.
Three blocks are located on a horizontal frictionless table. They are connected by a massless cord, What is the acceleration of the system
When high-energy, charged particles move through a transparent medium with a speed greater than the speed of light in that medium, a shock wave, or bow wave, of light is produced. Calculate the speed of the electrons in the water
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