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To focus a camera on objects at dissimilar distances, the converging lens is moved toward or away from the film, so a sharp image always falls on the film. A camera with a telephoto lens (f =220.0 mm) is to be focused on an object located first at a distance of 3.5 m and then at 53.0 m. Over what distance should the lens be movable?
A current of 0.307 A through your chest can send your heart into fibrillation, ruining the normal rhythm of heartbeat and disrupting the flow of blood (and thus oxygen) to your brain. If that current persists for 2.90 min, how many conduction elec..
question1assume that the balls initial velocity was 45 above the horizontal and ignoring air resistance what did an
When a battery is connected to the plates of a 9.00-µF capacitor, it stores a charge of 216.0 µC. What is the voltage of the battery
A capacitor with air between its plates is charged to 130 V and then disconnected from the battery. Whena piece of glass is placed between the plates, the voltage acrossthe capacitor drops to 25 V. What is the dielectric constant of the glass?
Determine the length of a copper wire that has a resistance of 0.172 Ohms and cross-sectional area of 7.85 × 10^-5 m^2. The resistivity of copper is 1.72 × 10^-8 Ohms m
question a 5.0 v battery storing 72.0 kj of energy supplies 1.5 a of current to a circuit. how much energy does the
Compute the horizontal distance traveled by the shot if it leaves the athlete's hand at a height of 2.10 m above the ground.
A 60.0-g object is attached to a horizontal spring with a force constant of 15.0 N/m, What is the velocity of the object when it is halfway to the equilibrium position if the surface is frictionless
Three deer, A, B, and C, are grazing in a field. Deer B is located 63.4 m from deer A at an angle of 53.0 ° north of west. Deer C is located 77.8 ° north of east relative to deer A. The distance between deer B and C is 93.3 m. What is the distance..
A 195g oscillator has a speed of 91.50cm/s when its displacement is 3.90cm and 73.0cm/s when its displacement is 6.20 cm
q1. over a 30-day period a power plant generates an average of 751 mw of electrical power and 1225 mw of waste heat and
A fishing line is attached to a bober that has diameter of 5.00 cm and mass of 5.00g. A lead weight is attached to line. What is mass of lead
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