Physics

What was King Louis XVI's goal for Jacques-Louis David's Oath of the Horatil, 17841) to send a moral message2) to educate the public about antiquity3) to discourage a revolution4) to decorate his palace
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Suppose that a 15.0 cm x 5.00 cm plane rectangular loop of wire has 12 turns. A magnetic field of 2.50 T is normal to the plane of the loop. This field is reduced to 1.00 T at a uniform rate in 3.00 ms. What is the current induced in the loop if its total resistance is 2.00 ?
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how old is alizea Martnez
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a two-turn circular wire loop of radius 0.301 m lies in a plane perpendicular to a uniform magnetic field of magnitude 0.169 t. if the entire wire is reshaped from a two turn circle to a one-turn circle in 0.109 s (while remaining in the same plane), what is the magnitude of the average induced emf e in the wire during this time? answer in units of v
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An inflated car tyre is considered to have a constant volume, regardless of any changes in temperatureor pressure. Use the kinetic theory of gases to answer following. a) How does the air in the tyre exert pressure on the walls of the tyre?b) Why is the pressure the same at all points on the inside wall of a tyre?c) What happens to the pressure on the inside walls of the tyre if the temperature of the air increases? Explain your answer. d) More air is pumped into the tyre whilst the temperature is kept constant until there are twice as many molecules as before. Explain why you would expect the pressure to be doubled
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When the first close-ups of Pluto's surface were received from the New Horizons spacecraft, astronomers were amazed to discover that Pluto's surface was
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If both the electric and magnetic fields of an electromagnetic wave double in magnitude, how does the intensity of the wave change
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An ungraduated mercury thermometer 'Q" attached to millimeter scale reads 22. 8mm in ice and 252. 4mm in steam at standard pressure. What will it read on a day when temperature is 30 F
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4) You are a passenger on a spaceship. As the speed of the spaceship increases, you would observe that A) the length of your spaceship is getting shorter. B) the length of your spaceship is getting longer. C) the length of your spaceship is not changing
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If a bullet of mass 25 g moving with a velocity of 200 m/s strikes a walland goes out from the other side with a velocity of 100 m/s. Find thework done in passing through the wall. A)125 JB)326 JC)375 JD)263 J
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HELP PLEASE! DUE TONIGHT!What is the magnitude of the electric field strength at a point 2.2cm to the left of the middle charge? (let kc=8.987755e9 N*m^2/C^2
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a weight lifter must expert of force to lift a set of barbells off the ground
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what conclusion is best supported by the image? A) The fields direction changes with the currents direction.B) The field weakens farther from the wire.C) The field increases with greater current.D) The fields strength changes with the currents direction.
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Physics questiontwo concrete spans of a 180 m long bridge are placed end to end so that no room is allowed for expansion. if the temperature increases by 20c, what is the height to which the spans rise when they buckle? assume the thermal coefficient of expansion is 1.2 10^5(c)^1. answer in units of m.
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Eli is a 9-year-old and his friend has asked him to share his test answers. Eli refuses to let his friend cheat off his paper because he does not want to get in trouble with the teacher Given Elis age and response, which stage of moral development did he demonstrate:Group of answer choicesPreoperationalConventionalPreconventionalPostconventional
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Using the PhET Balancing Act, discuss the possibilities of balancing two forces acting on one side of a pivot point with a single force of the other. Select the best answer: i. This is possible with a single force at the same distance from the pivot point but on the opposite side of the pivot point as one of the forces. Ii. This is possible with a single force at the same distance as the point half way between the two forces from the pivot point but on the opposite side of the pivot point. Iii. This requires two forces. A
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When a 3. 0-kg block is pushed against a massless spring of force constant 4. 5103N/m, the spring is compressed 8. 0 cm. The block is released, and it slides 2. 0 m (from the point at which it is released) across a horizontal surface before friction stops it. What is the coefficient of kinetic friction between the block and the surface?
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Calculate the highest frequency x-rays produced by 810^4eV electrons
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The rear defroster of your car operates on a current of 6. 00 A. If the voltage drop across it is 5. 00 V, how much electric power is it consuming as it melts the frost
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What do you call burning organic waste. SAMBSIO?
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Some people think that we should try to live outside of the Earth (on the Moon, or even on Mars, for example). Write your ideas about this. Will this be possible some day soon? When will this happen? How are we going to live there? What will be different up there?
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The distance between two consecutive minimums(nodes) in a sound-wave pattern is?
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in a two-slit experiment, monochromatic coherent light of wavelength 600 nm passes through a pair of slits separated by 2.20 x 10-5 m. at what angle away from the centerline does the first bright fringe occur?
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Dolphins communicate using various sounds, including whistles, clicks, and squeaks. Lower-frequency vocalizations are likely used in social communication, and high-frequency vocalizations are likely used in echolocation. If a dolphin is producing a vocalization with a frequency of 35 Hz traveling at 1,500 m/s, what is the wavelength of the sound?
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