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Q: If a suspended object A is attracted to a charged object B , can we conclude that A is charged? Expl...

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Q: Help on ranking problems: If two items are equivalent, ranking is done in the same way as it is done...

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Q: How can gravity be stimulated in an orbiting space station?

A: Answer:- Find how can gravity be stimulated in an orbiting space station. Now, Gravity is often simu...

Q: A steel wire in a piano has a length of 0.700 0 m and a mass of 4.300 × 10–3 kg. To what tension mus...

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Q: Why are all the tides greatest at the time of a full Moon or new Moon?

A: In the time of full Moon or new Moon, the Earth, Sun and Moon are aligned in one line. As a result, ...

Q: What is the magnitude of the gravitational field at Earth's center?

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Q: Which is denser, an object having the density of 1000kg/m3 or an object having density of 1g/cm3. De...

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Q: Discuss whether or not the velocity of an object can reverse direction while maintaining a constant ...

A: Yes, the velocity of the object can reverse direction when its acceleration is constant.

Q: Acceleration is generally defined as the time rate of change of velocity. When can it be defined as ...

A: Acceleration is the time rate of change of velocity. It is a vector quantity.

Q: What is a mixture? Give three examples?

A: The mixtures are formed by mixing the two or more substances with each other without combining chemi...

Q: In Rutherford’s famous scattering experiments that led to the planetary model of the atom, alpha par...

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Q: An object is placed in front of a convex mirror at a distance larger than twice the magnitude of the...

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Q: What is the shape of the orbit when the velocity of the satellite is everywhere perpendicular to the...

A: If a body moves such that the velocity of the body is always perpendicular to the force that acts on...

Q: Explain whether a force is acting on a car that is moving at 20 km/h and turns left.

A: Yes. Frictional force is working against the car to slow down its speed. The Frictional force is wor...

Q: If two objects have equal kinetic energies, do they necessarily have same momentum? Defend your answ...

A: The formula for the kinetic energy is: Use the formula for the kinetic energy and write the express...

Q: A projectile is launched vertically at 100m/s. If air resistance can be neglected , at what speed wi...

A: Since the air resistance is neglected, there is no loss of energy for the projectile. The energy of ...

Q: Discuss why friction made it difficult to discover Newton's first law of motion.

A: Newton’s first law of motion states that every object will continue to be in its state of motion or ...

Q: A student stands on a thick piece of insulating material, places her hand on top of a Van de Graaffg...

A: Van de Graaff generator creates static electricity. Charges get accumulated on the dome of the gener...

Q: What are units of measurements for rotational speed?

A: There are many units of measurements of rotational speed.  

Q: A charge q = +5.80 μC is located at the center of a regular tetrahedron (a foursided surface) as in ...

A: The electric flux is given by

Q: If you swim beneath the surface in saltwater, will the pressure be greater than in freshwater at the...

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Q: When a satellite in circular orbit slows, perhaps due to the firing of retro rocket, it ends up gain...

A: The retro rockets are used to slow down the spacecraft in space, and these are fired in the directio...

Q: Why does the force of gravity change the speed of satellite in an elliptical orbit?

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Q: A mechanic uses a chain and bloc pulley to lift a 875-kg engine 4.0 m to the top of the garage. the ...

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Q: Why is work done by the force of gravity on a satellite when it moves from one part of an elliptical...

A: The formula for the work done is: In the expression of work done, θ is the angle between displaceme...

Q: Two ice skaters, Daniel (mass 65.0 kg ) and Rebecca (mass 45.0 kg ), are practicing. Daniel stops to...

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Q: The electric field everywhere on the surface of a charged sphere of radius 0.230 m has a magnitude o...

A: a)The equation for the magnitude of the electric field at the surface of a sphere is given by,

Q: How are elements with nuclei heavier than those of hydrogen and helium formed?

A: Hydrogen and helium for being the simplest and lightest chemical elements were formed from the very ...

Q: Homework #6 Begin Date: 3/9/2020 12:01:00 AM -- Due Date: 3/19/2020 11:59:00 PM End Date: 3/26/2020 ...

A: Let the fundamental frequency of the one end closed tube is denoted by f0. Write the formula for th...

Q: Why are lightweight tires preferred over lightweight frames in bicycle racing?

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Q: Which will have the greater acceleration rolling down an incline, a bowling ball or a volleyball? De...

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Q: Why do both the Sun and the Moon exert a greater gravitational force on one side of Earth than the o...

A: The gravitational force between two objects is inversely proportional to the square of the distance ...

Q: In what sense can it be said that a tree is solidified air?

A: Trees are composed mainly of hydrogen, oxygen and carbon. The carbon molecules form the backbone of ...

Q: Find the components of vtot along the x and y axes in Figure 3.25, where θ = 21.0° and vtot = 5.48 m...

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Q: A convex mirror has a focal length of magnitude f. An object is placed in front of this mirror at a ...

A: The formula for the mirror is: The object is at its radius of curvature. Therefore,

Q: Two very long parallel wires carry currents in the positive x direction. One wire (current = 15 A) i...

A: Where, B = magnetic field I = current flowing in wire r = radius   The current flowing through wire ...

Q: A car undergoes a uniform circular motion. What is the acceleration of car? 1) zero2) a non-zero con...

A: Uniform circular motion: When an object is moving in circle with a constant speed then the motion of...

Q: A 55 kg astronaut who weighs 200 N on a distant planet is pondering whether she can leap over a 3.5-...

A: Consider an astronaut having mass m and weighs W at some distant planet. Write the formula for the ...

Q: How far, and in what direction, should a cellist move her finger to adjust a string’s tone from an o...

A: Take,    

Q: An electric field of intensity 3.50 kN/C is applied along the x -axis. Calculate the electric flux t...

A: The position of the rectangular plane is,

Q: Light at 594 nm from a helium–neon laser shines on a pair of parallel slits separated by 1.71 ✕ 10−5...

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Q: How many types of atoms can you expect to find in a pure sample of any element?

A: Only one type of of atom we can expect to find in a pure sample of any element.

Q: When you wirl a can at the end of a string in a circular path, what is the direction of the force yo...

A: For circular motion, there a force acts towards the center of the path, that is the centripetal forc...

Centripetal Force

A particle, body, object or certain mass while travelling in a rotational path or semicircular path, experiences an inertia force. If that inertia force pulls the towards the inward of the imaginary circle in the rotation, it is termed as centripetal force.