Physics

A 3.0-cm-tall object is 12 cm in front of a concave mirror that has a 25 cm focal length.1 Calculate the image position.2 Calculate the image height. Type a positive value if the image is upright and a negative value if it is inverted.
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Two devices of rating 22 W; 220 V and 11 W; 220 V are connected in series. The combination isconnected across a 440 V mains. The fuse of which of the two devices is likely to burn whenswitch is on ? Justify your name.
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A conducting coil of 2250 turns is connected to a galvanometer, and the total resistance of the circuit is 30 . the area of each turn is 5. 00 10-4 m2. this coil is moved from a region where the magnetic field is zero into a region where it is nonzero, the normal to the coil being kept parallel to the magnetic field. the amount of charge that is inducedto flow around the circuit is measu
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Four forces (1,2,3 and 4) are in the x-y plane and act on an irregularly shaped object
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Recommendationsskill plansa mathlanguage artsga standardssixth grade ff 20 volume of cubes and rectangular prisms: word problems bbmyou have prizes to reveal! go to yafter visiting the needleton natural museum, irma was so fascinated by the reptile exhibitthat she got her very own pet lizard, irma bought a terrarium shaped like a rectangular prismfor her lizard to live in. the terrarium is 20 inches long, 15 inches wide, and 12 inches tall. which equation can you use to find the volume of the terrarium, v?20. 15 = 12vv = 20. 15. 12what is the volume of the terrarium?write your answer as a whole number or decimal. do not round. cubic inchessubmitlo my
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A flute is played with a first harmonic of 196 Hz (a pitch of G3). The length of the aircolumn is 89. 2 cm (quite a long flute). Find the speed of the wave resonating in theflute.
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When a wind-up toy is set in motion, elastic potential energy that was stored in a compressed spring is converted into the __________ of the toys moving parts
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What particle carries electric charge between your body and carpet when you experience static electricity?
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Stade avogadro's hypothesis what are its applications, prove that hydrogen hydrogen and oxygen gases
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HELP!!! You have two substances, both of which have the same boiling point (or attraction between their molecules).The first substance is made from molecules that are small (just a few atoms bonded together), and the second substance is made from mol that are larger (many atoms bonded together).How can it be possible for two such different molecules to yield substances with the same boiling point? Describe the kinds of intermolecu attractions that must be involved and any other properties of the molecules that could cause this result.
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Why do expanding, aging stars become cooler and more luminous? an overproduction of energy causes the outer layers of gas to expand, whereby the energy is absorbed and the temperature increases. the resulting increase in radiated energy leads to increased luminosity. a decrease in energy causes the outer layers of gas to expand and the temperature to decrease. the resulting increase in radiated energy leads to increased luminosity. a decrease in energy causes the outer layers of gas to expand and the temperature to decrease, and the resulting increase in surface area leads to increased luminosity. an overproduction of energy causes the outer layers of gas to expand. when this happens, the surface area increases rapidly while the temperature decreases rather slowly, and therefore the luminosity increases.
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As an object moves from point a to point b only two forces act on it: one force is nonconservative and does 30 j of work, the other force is conservative and does +50 j of work. between a and b,
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If the current in a circuit is 3. 2 mA and the resistance of the wire used in the circuit is 250 , what is the voltage of the fuel cell being used? Formula;Calculation; Answer:
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A truck weighs 25,000 n, and its tires are inflated to a pressure of 200 kpa. what is the total area of the trucks tires in contact with the road?
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A 2,000-kg elevator is being accelerated upward at a rate of 3. 0 m/s2. What is the tension in the cable
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mary is an avid game show fan and one of the contestants on a popular game show. she spins the wheel, and after 5.5 revolutions, the wheel comes to rest on a space that has a $1500 value prize. if the initial angular speed of the wheel is 3.35 rad/s, find the angle through which the wheel has turned when the angular speed reaches
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Researchers want to assess your intelligence. To do so, they have youcomplete a short survey on which you indicate your favorite color. They askyou to complete this survey multiple times, and you always answer the samecolor. Unfortunately, one's favorite color has nothing to do with one'sintelligence. This research survey is best defined as:
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If x = 3.0 cm and y = 15.0 cm, what is the ideal mechanical advantage (ima) of thepliers?
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A toy car has a 1. 5-a current, and its resistance is 2. How much voltage does the car require? v.
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[Rotational motion] Calculate the length L between the 40N weight and the pivot needed to balance the beam shown in Figure 10.9. (solution says it's 7 m but it's unclear how it was obtained)
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Name these lonic Compounds using the "Periodic Table of Food":1. BPo2. Bl2Tu3. Cr2Sn4. LiSr25. Or3 6. Ba2
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A researcher wants to investigate the relationship between pressure and temperature in carbon dioxide gas (CO 2 ) by using a pressure sensor on an airtight flaskIn Step 1 of the investigation, the student adds CO 2 to the flask at 20 degrees*cA. Step 2: Turn on the hot plate to increase the temperature of the gas and record the resulting pressure. Step 3: Repeat with different sizes of flasks to account for volume. B. Step 2: Keep the volume of the flask constant. Step 3 Turn on the hot plate to increase the temperature of the gas and record the resulting pressure. A. Step 2: Turn on the hot plate to increase the temperature of the gas and record the resulting pressure. Step 3: Repeat with different sizes of flasks to account for volume. D. Step 2 : Keep the volume of the flask constant. Step 3: Turn on the hot plate to increase the temperature of the gas and record the resulting pressure. Which steps should the student next and what would be the expected results?Choice AChoice BChoice CChoice D
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5. An elephant has weight of 48000N and exerts pressure of 60000 Pa on the ground. What is the area of the elephant's feet in contact with the ground?a. 1.25 m^2b. 0.8 m^2c. 2.0 m^2d. 8.0 m^2
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Q1) The molar specific heat of a diatomic gas is measured at constant volume and found to be 29. 1 J/mol. K. The types of energy that are contributing to the molar specific heat are: (a) translation only (b) translation and rotation only (c) translation and vibration only (d) translation, rotation, and vibration. And why?
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