What

Q: A magnifier (microscope) has a magnification of 4X. Its final image formed by the eyepiece is at the...

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Q: A rescue helicopter lifts a 57.7-kg person straight up by means of a cable. The person has an upward...

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Q: Using Stokes’ law, verify that the units for viscosity are kilograms per meter per second.

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Q: (II) A bottle has a mass of 35.00 g when empty and 98.44 g when filled with water. When filled with ...

A: Given The mass of the bottle when it is empty is mempty bottle = 35 g. The mass of the bottle when i...

Q: Ace throws a ball straight upward with an initial speed of 20.0 m/s. What is the maximum height reac...

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Q: Two long, parallel, and oppositely charged wires of radius a with their centers separated by a dista...

A: Data provided in the question; Radius of wire = a Separation between centers of wire = d

Q: The lob in tennis is an effective tactic when your opponent is near the net. It consists of lofting ...

A: Given data The initial speed of the tennis ball is: v = 13.6 m/s The angle of projection of the tenn...

Q: DVDs and Blu-ray disks store information in patterns that are read by laser light. The shorter the w...

A: The order of wavelength from lower value to higher value is; Violet<Indigo<Blue<Green<ye...

Q: What’s the difference between theory and research?

A: Research is basically a method or an action to expand and to increase the existing knowledge about a...

Q: an eye bolt is anchored in concrete. three forces are acting on that eye bolt: F1 =300N; F2 = 65 N; ...

A: “Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts f...

Q: Assume there is a completely straight highway from City A to City B, which is 200km long. You drive ...

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Q: A sinusoidal wave traveling on a string has a period of 0.20 s, a wavelength of 32 cm, and an amplit...

A: Given data The time is, T= 0.20 s The wavelength is, λ=32 cm The amplitude is, a= 3 cm Step 1 The fr...

Q: A scale used to weigh fish consists of a spring hung from a support. The spring’s equilibrium length...

A: The spring’s equilibrium length,   The mass of the fish,

Q: As discussed in the chapter, many species of bats find flying insects by emitting pulses of ultrasou...

A: The distance from the bat to the object is 1 m. Therefore, the pulse will travel a total distance of...

Q: You throw a ball straight up with an initial velocity of 15.0 m/s. It passes a tree branch on the wa...

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Q: On a spacecraft two engines fire for a time of 567 s. One gives the craft an acceleration in the x d...

A: Given: Timing of fire the engine (t) = 567 s. Acceleration of engine in direction x (ax) = 4.8 m/s2....

Q: It is unlikely that a process can be isothermal unless it is a very slow process. Explain why? it is...

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Q: The only source of light in a room is the lightbulb shown. An opaque disk is placed in front of the ...

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Q: Traditional methods of protecting the hearing of people whowork in areas with very high noise levels...

A: Given Traditional methods of protecting the hearing of people whowork in areas with very high noise ...

Q: An advanced computer sends information to its various parts via infrared light pulses traveling thro...

A: Given The refractive index of the material is n = 3.50. The time is taken to process the data by a m...

Q: When a gas expands isothermally, it does work. What is the source of energy needed to do this work?

A: Isothermal expansion 

Q: Marie and Pierre Curie were both winners of the Nobel Prize in physics. This prize is one of the hig...

A: Curie's family is known for their scientific  achievements and their Nobel prizes are confirmation o...

Q: An electric sander consisting of a rotating disk of mass 0.7 kg and radius 10 cm rotates at 15 rev/s...

A: Final rotation kinetic energy

Q: A resistor and capacitor are connected in series across an ac generator. The emf of the generator is...

A: Given data The generator emf is v (t) = vocosωt The potential difference is: vo= 120 V The angular f...

Q: 17. A shortstop may leap into the air to catch a ball and throw it quickly. As he throws the ball, t...

A: As a shortstop throws a ball, the upper part of his body rotates. His hips and legs rotate in the op...

Q: (I) (a) What resonant frequency would you expect from blowing across the top of an empty soda bottle...

A: To find: (a) What resonant frequency would you expect from blowing across the top of an empty soda b...

Q: A 60.0-kg person jumps onto the floor from a height of 3.00 m. If he lands stiffly (with his knee jo...

A: The mass of the person,   The height of the jump,   The joints compressed,

Q: In World War II, there were several reported cases of airmen who jumped from their flaming airplanes...

A: The stopping distance,   The initial velocity,   The final velocity,

Q: Suppose the following experiment is performed. A 0.250-kg object is slid on a frictionless surface i...

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Q: As shown a water-filled syringe with a 4.0-cm-long needle. What is the gauge pressure of the water a...

A: According to Poisuelli’s, Volume flow rate is given by following equation, Where, Q= the volume flo...

Q: What is the speed of a rocket that travels 9000 meters in 12.12 seconds?

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Q: What is the longest wavelength of light that can excite the 4s state of sodium?

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Q: A particle of charge −q−q and mass m is placed at the center of a uniformaly charged ring of total c...

A: Answer:   To show that the particle oscillates in simple harmonic motion with a frequency:  

Q: Two boats are heading away from shore. Boat 1 heads due north at a speed of 3.16 m/s relative to the...

A: Given: The velocity of boat 1 relative to shore is V1s = 3.16 m/s. The velocity of the boat 2 relati...

Q: Show that 1.0 m/s = 3.6 km/h . Hint: Show the explicit steps involved in converting 1.0 m/s = 3.6 km...

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Q: Find the speed needed to escape from the solar system starting from the surface of Earth. Assume the...

A: The mathematical formulation of the gravitational potential between the two mass is calculated as, ...

Q: How far apart are two conducting plates that have an electric field strength of  4.50 x 103 V/mbetwe...

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Q: A projectile has an initial velocity of 45m/s at an angle of 53° with respect to the horizontal and ...

A: Given data The projectile has an initial velocity of u = 45 m/s The projection angle of the projecti...

Q: Trying to determine its depth, a rock climber drops a pebble into a chasm and hears the pebble strik...

A: Given quantities: Total time after which the climber hears the sound (T) = 3.47 s speed of the sound...

Q: What is the angular momentum of the moon around the earth? The moon’s mass is 7.4 x 1022 kg and it o...

A: The angular momentum is given by; L=mvr Here, m is mass of moon , v is speed of moon and r is distan...

Q: What is the ideal banking angle for a gentle turn of 1.20 km radius on a highway with a 105 km/h spe...

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Q: When uranium fissions, the fission products are radioactive because the nuclei are neutron-rich. Wha...

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Q: White light passes through a diffraction grating and forms rainbow patterns on a screen behind the g...

A: Let the fringe separation is given by Δy. Let the wavelength is given by λ and the slit width is giv...

Q: A truck moving initially at24.6 m/S cover 70.0 m 2.40s. What is the truck final speed

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Central Force

Central force is the force that acts along the center of mass of one body to the center of mass of another body. Its direction from or away from a point on a body to another is called the center of the force. Such forces include gravitational force between two massive objects or electrostatic forces between two charged particles. So from atoms to planets, the central forces play an important role in shaping our daily lives. One of the remarkable features of central forces is that they are conservative, i.e. the total energy of a central force system can always be expressed as a gradient of a potential energy function.