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Assume that you have an object that you want to image onto a viewing screen 1500mm away from the object. What are the possible image magnifications if you image the object onto the screen with a thin lens of focal length f=160mm? What focal length of the lens would you need to image the object at a magnification of -3?
It takes 18 minutes to fill a 1.2 m3 horse trough. It is filled with water from a hose with diameter 2 cm. What is the flow rate of the water
A 15.0 kg bucket of water is suspended by a very light rope wrappedaround a solid uniform cylinder 0.300 m in diameter with mass 12.0kg. What is the time of the fall
A 851-kg car stopped at an intersection is rear-ended by a 1760-kg truck moving with a speed of 17.5 m/s. find the final speed of both vehicles after the collision
A rectangular loop of wire that is 11cm wide and 21 cm long lies in thex—y plane. The loop is in a region wherethe magnetic field is B = 1.6 T and makes and angle of 62° with the z axis. What is the magnitude of the magnetic flux through the loop?
You want to build a raft that can hold you (76 kg) plus some supplies (39 kg) for a long trip. how many logs do you need
a 15.0-v battery is connected to a capacitor resulting in 55.0 microc of charge stored on the capacitor. how much
The blade of a windshield wiper moves through an angle of 90.0° in 0.44 s. The tip of the blade moves on the arc of a circle that has a radius of 0.34 m. What is the magnitude of the centripetal acceleration of the tip of the blade?
A riffle bullet with mass 8 g strikes and embeds itself in a block with mass .992 kg that rests on a frictionless horizontal surface and is attached to a coil spring. What is the initial speed of the bullet
If the rms speed of the molecules of a quantity of helium at temperature 142 K is the same as the rms speed of neon atoms at a second temperature
A satellite is in a circular orbit about the earth (M = 5.98 x 1024 kg). The period of the satellite is 6.84 x 104 s. What is the speed at which the satellite travels
A ball is thrown up with a velocity of 8 m/s and allowed to fall back down. how long will the ball take to return to its initial position
a resistor connected across an ac power supply has a current given by i 1.15a cos 300t when connected to a power
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