A concave mirror of focal length 17.5 cm forms a real image 24.8 cm from the mirror. How far is the object from the mirror? (Unit = cm)

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Q: Which diagram best represents the charge distribution on a neutral electroscope when a negatively ch...

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Q: Hi, can anyone solve this with a detailed explanation.   The electron in a hydrogen atom is initia...

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Q: A 0.140-kg baseball traveling 40.0 m/s strikes the catcher's mitt, which, in bringing the ball to re...

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Q: If a thunder is heard by a man 5 seconds after the lightning is seen , how far is the lightning from...

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Q: A particle's position is given by * = 4.00? – 3.00t + 6.00, with x in meters and tin seconds. What i...

A: Given value--- x=4.00t^ 2 -3.00t+6.00 We have to find--- What is the average velocity between t =...

Q: Please refer to the following instructions  In Exercise 12.4 of your book, University Physics 15th ...

A: Note: Final answer in proper SI unit and without scientific notation is mentioned in last step. 

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Q: A canon ball, projected at angle of 60° above the horizontal strikes a tower 30m away at a point 15m...

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Q: An airplane takes 5 hours to travel a distance of 4800 miles with the wind. The return trip takes ...

A: Write the expression of speeds when airplane travels with the wind. vp+va=48005vp+va=960 miles/h    ...

Q: Suppose an object is held 9.5 cm from a diverging (concave) lens of focal length -22.0 cm. What is t...

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Q: A cube of a material of side 1 cm has a resistance of 0.001 Q between its opposite faces. If the sam...

A: There are different questions. According to guideline I solve only first question. Please post other...

Q: A nitrogen gas with a volume of 11.75 L was placed inside a chamber with a pressure of 2022 psi at a...

A: Ideal gas equation                  PV = nRT Here R is constant               PV/T = nR = constant B...

Q: Q3: A cheetah can accelerate from rest to a speed of 30.0 mis in 7.00 s. What is its its acceleratio...

A: Given: Initial speed of Cheetah, u = 0 m/s Final speed of Cheetah, v = 30 m/s Time taken, t = 7 s

Q: Direction: Write your answer in the space provided. It has its own decay series as it too eventually...

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Q: How many times great is the mass of the heaviest turtle than the mass of the lightest turtle. All me...

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Q: Q1Calculate the value of the current flowing in the circuit shown below and the equivalent resistanc...

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Q: Problem 4: Consider two long wires with currents Ij = 5.2 A and I, = 3.8 A, as shown in the figure. ...

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Q: A 45-caliber bullet shot straight up from the surface of the earth would reach a height of s(t) = 83...

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Q: 4 A force F pushes on block 2 with mass, m2 = 15kg. Block 1 with mass, mi = above the ground. Both b...

A: In such type of problem first draw the separate FBD of  the objects which shows all the forces actin...

Q: travels another 25 km. After this time, the bus turns 45o North of West and continues to travel for ...

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Q: Q1: The Hamiltonian is represented by the matrix H= o 0 2 0 Where o is positive real number. 0 2 (a)...

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Q: (4 blanks) An ice-making machine operates in a Carnot cycle. It takes heat from water at 0.0 °C and ...

A: a)  efficiency of carnot engine is given by e = 1 - |Tc/Th| given that, Tc = temperature of cold cha...

Q: Complete the following statement: The moment of a force about a point is multiplied by Fig. 10.1 sho...

A: 10) part a:- Given statement to complete: The moment of a force about a point is force multiplied by...

Q: When you are swimming at the bottom of a pool, the water above and around you exerts force on your e...

A: We have P=hρg⇒F=PA =hρgA

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Q: Did a change in the net force produced a change in acceleration by the same factor? Do your results ...

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Q: briefly explain the joule thompson experiment and highlight the important points

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Q: A cicular segment of radius 10 cm, subtends an angle of 60° at the centre. A current of 9 Ampere is ...

A: givenradius of the circular segment r=10cm=0.1 mangle sustended at the center ,θ=60° =π3 radcurrent ...

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Q: Find the temperature in Celsius: P = 5.20atm V = 28.54L n = 9.71mol Show your solutions

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Q: If a thunder is heard by a man 5 seconds after the lightning is seen, how far is the lightning from ...

A: Given data :                           Time  =  t                     Speed of sound  =  v          ...

Q: The uniform solid block in the figure has mass 18.3 kg and edge lengths a = 0.952 m, b = 1.62 m, and...

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Q: A 980-kg sports car collides into the rear end of a 2500-kgkg SUV stopped at a red light. The bumper...

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Q: The weight forces are internal to the system. O True O False

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Q: 2. A 827 cm³ gold nugget and a 827 cm³ aluminum block are immersed in water. Which object experience...

A: As per the guidelines, I can only answer the 1st question. I hope you will find it worth assisting.

Q: When you are swimming at the bottom of a pool, the water above and around you eerts force on your ea...

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Q: A student sets up a Fletcher’s Trolley, where Block 1, on the table, has a mass of 0.450 kg and Bloc...

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Applications Of Reflection Of Light

When a light ray (termed as the incident ray) hits a surface and bounces back (forms a reflected ray), the process of reflection of light has taken place.

Sign Convention for Mirrors

A mirror is made of glass that is coated with a metal amalgam on one side due to which the light ray incident on the surface undergoes reflection and not refraction.