Physics

An electronic flash unit for a camera contains a capacitor with a capacitance of 900 microF. When the unit is fully charged and ready for operation, the potential difference between the capacitor plates is 350 V.a) What is the magnitude of the charge on each plate of the fully charged capacitor? (answer in C please)b) Find the energy stored in the "charged-up" flash unit. (answer in J please)
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The theory of gravity, which helps explain the movement of the planets, was developed by the scientistthe Earth moves around the sunLiteracy increases among ordinary peopleNewtonTo reform the Catholic Church
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a 910-kg sports car collides into the rear end of a 2000-kg suv stopped at a red light. the bumpers lock, the brakes are locked, and the two cars skid forward 2.0 m before stopping. the police officer, estimating the coefficient of kinetic friction between tires and road to be 0.80, calculates the speed of the sports car at impact.
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Describe the change to the graph of Y= X +3 when Y=2X -3 is graphed
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a gun fires a bullet vertically into a 1.40-kg block of wood at rest on a thin horizontal sheet.if the bullet has a mass of 26.8 g and a speed of 230 m/s , how high will the block rise into the air after the bullet becomes embedded in it?
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a 0.500-kg object attached to a spring with a force con- stant of 8.00 n/m vibrates in simple harmonic motion with an amplitude of 10.0 cm. calculate the maximum value of its (a) speed and (b) acceleration, (c) the speed and (d) the acceleration when the object is 6.00 cm from the equilibrium position, and (e) the time inter- val required for the object to move from x 5 0 to x 5 8.00 cm.
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what is the smallest possible magnitude of the acceleration of the electron due to the magnetic field?express your answer with the appropriate units.
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in csi detectors there is very little light spread. b. crystalline needles block light from the detector. c. x-rays are converted into an electrical signal. d. light spread causes resolution to decrease.
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when you blow air into an open organ pipe, it produces a sound with a fundamental frequency of 440 hz. if you close one end of this pipe, the new fundamental frequency of the sound that emerges from the pipe is
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a spherical capacitor has vacuum between its conducting shells and a capacitance of 125 pf . the outer shell has inner radius 9.00 cm . what is the outer radius of the inner shell? express your answer with the appropriate units.
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a(n) is rock in space. when it enters a planet's atmosphere it is a(n) . any piece remaining after impact is a(n)
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a ball thrown vertically upward is caught by the thrower after 2.80 s at the same height as the initial point of release. find the maximum height the ball reaches from the point of release.
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A light bulb in a battery-powered torch is too dim. Explain which property of the bulb should be changed to make the light brighter, and how should it be changed
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the loudness and duration of the emitted sound are enhanced by a resonant pipe suspended vertically below the center of the bar. if the pipe is open at the top end only and the speed of sound in air is 340 m/s, what length of the pipe is required to resonate with the wooden bar?
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which is easier: to detect the spread-out raw material in exoplanet systems from which planets might be assembled or to detect exoplanets after they are fully formed? in what region of the electromagnetic spectrum is this detection made?
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what is the torque produced by a force of magnitude 90 n that is exerted perpendicular to and at the end of a 0.5m long wrench
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how much force does an 76.0 kg astronaut exert on his chair while sitting at rest on the launch pad?
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initially a body moves in one direction and has kinetic energy k. then it moves in the opposite direction with three times its initial speed. what is the kinetic energy now?
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what kind of star has an absolute magnitude of 10 and a surface temperature of 20,000 k? a. giant b. supergiant c. white dwarf d. main sequence
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which of the following is not connected or involved with shock metamorphism? group of answer choices asteroids coesite pegmatites impactiles
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a 100 ohm resistor is connect in parallel with a 300 ohm resistor. what is the equivalent resistance?
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if normal atmospheric pressure is 14.7 pounds/sq in at the surface of the earth, what is the force pushing down on a table measuring 50 inches wide by 200 inches long?
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a fragment of a current-carrying wire has a cross-sectional area that increases as shown. 1) if the current that flows through the wire is uniform, where is the drift velocity the greatest?
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Research Galileo's work on falling bodies What did he wanted to demonstrate?What arguments did he use to prove that he was right?did be used experiments logic finding of other scientists or other approaches
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