Under what condition can we treat train as a point object?

Q: problemy : O A tightly steatched string with Fixed end pointj x-0 e a =l initially atist in it,…

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Q: They stick together and move at what speed?

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Q: A young-looking woman astronaut has just arrived homefrom a long trip. She rushes up to an old…

A: The question here is referring to the concept of time dilation Δt=Δt'1−v2c2 where Δt=Time which the…

Q: A driver traveling at 30.0 km/hr sees the light turn red at the intersection. If his reaction time…

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Q: C and D?

A: (c) Since the student and the wheel are the closed system (friction is assumed to be negligible) and…

Q: Find the elestric freld at the poiat P for setup bele Exelain the diference La) and Lc)

A: SOlution:' as given  to find the electriic field at point P

Q: You are in a windowless car in an exceptionally smoothtrain moving at constant velocity. Is there…

A: A train is moving

Q: A Partical of massmoves (20gm) BY The eflect of The Patentialenergy function. 1 Power function…

A: We have a particle of mass m=20 g=0.02 kg having an initial velocity u=20 cm/s=0.2 m/s moving in a…

Q: Two electrons are brought close together, to a distance of 83 pm apart. They are then both released…

A: Given  distance between electrons =83 x 10-12 m Required speed of electrons far apart

Q: pasition of times given by The particle as a function of [(5t - 24)A + (42 - 8t) ĵ + (st² +)km wheue…

A: Given that, The position of a particle is given by : r→=5t2-2ti^+t2-8tj^+3t2+1k^ m Where t is in…

Q: The position of particle at t = 4s will be,

A: Given: Position of particle at t=4sPosition time curve of a particle moving along x-axis isas shown…

Q: How would I solve for Fnetx and Fnety for problems 2 to 9?

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Q: A pregnant woman experiences labor pains, so the husband decided that she will be brought to the…

A: Given Data : The distance of the wife from the hospital is given as d = 70 Km. The speed of the car…

Q: An example of a frame of reference would be O A moving airplane All of answer are correct O A person…

A: The frame of reference is a reference frame that may be a moving airplane, a person, and the Earth.

Q: Where is the object when t=35.5s?

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Q: The moon is about  from Earth. Traveling at the speed of light,  m/s, how long does it take a laser…

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Q: The Positionof a particle moving alang x-aktss where isin meler t isinseconde find 1.The pasitionof…

A: Given X=6t+3t2-t3

Q: It defines the extent of the system O System O Model O Particle O System Boundart

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Q: Describe about the magnitude of a moment M.

A: Since you have posted three different questions, we will solve the first one only as per Bartleby…

Q: If the mass is set in motion from its position function at any give-

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Q: A man moves on ground with a speed of 2ms-1 towards a train moving towards him with 40ms-1 on…

A: Train is moving in the opposite direction of person.

Q: Two parallel plates A and B are velocity corresponding to an accelerat through a hole in plate A at…

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Q: A man standing still at a train station watches two boys throwing a baseball in a moving train. The…

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Q: If a flashing light source moves toward you fast enough so that the duration between flashes is half…

A: It is given that a flashing light source is moving towards us such that the duration between the…

Q: basis for the development of the Michelson interferometer and, in turn, Michelson and Morley’s…

A: Given: Use the concept of Michelson interferometer to determine the time it takes to swim across the…

Q: Rank the magnitude of ∫B⋅ds for the closed paths in the figure below, from least to greatest.

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Q: The speed of the particle is?

A: The distance covered by a particle in given time interval is called speed.

Q: Two electrons are brought close together, to a distance of 75 pm apart. They are then both released…

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Q: Prove that Vav= 0.92 Vrms

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Q: Which of the following is true about the centroid of the sections below from X-axis? *

A: Given  Semi circle and quarter circle of same radius. Let us say it is r.

Q: ing searchlight in a lighthouse 2 km offshore is following a car traveling slowly along the shore.…

A: A revolving searchlight in a lighthouse 2 km offshore is following a car traveling slowly along the…

Q: Consider the case of two kids, Sam and Peter, riding a train and playing catch in an empty car. The…

A: Speed of train = 10 m/s (towards right)Speed of ball thrown by Sam = 5 m/s (towards right)Speed of…

Q: A jet plane is observed 400ft above the ground and is flying 180mph to the west. A man jumps out of…

A: Given Data : -  The horizontal speed of the plane is v = 180 mph. The time required by the man to…

Q: A 135m long steel beam is moving past the Earth actually measures the steel beam to be only 57m…

A: Given a 135m long steel beam is moving past the Earth actually measures the steel beam to be only…

Q: Two automobiles are 150 kilometers apart and traveling toward each other. One automobile is moving…

A: Given: Automobiles are separated by a distance d=150 km Speed of first automobile v1 = 60 km/h Speed…

Q: Peggy, standing on a moving railroad car, passes Ryan at velocity ν. Peggy and Ryan both measure the…

A: Introduction: The length contraction is the shortening of the measured length of a moving object…

Q: A worker stands on top of a railroad car moving at constantvelocity and throws a heavy ball straight…

A: If car moving with constant velocity on top of rail road  every body in car also having same…

Q: outside surlace of the sphere. The point B on the sphere is at a height above O. After time 1, agle…

A: Given, Mass of sphere, m Radius of sphere, r Height of point B from O, 3r2 Height of point C from O,…

Q: An electron is electrically accelerated inside a region of length 1.4 cm. It enters the region with…

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Q: The Tripod is an example of space frame Select one: True False

A: Plane frame: It's a frame in which all the members lie in single plane. Example: Roof trusses,…

Q: Explain the term covarient and contravarient Tensor?

A: In the tensor analysis, covariance and contravariance are about how the quantitative description of…

Q: How fast will the electron be moving when it is very far away?

A: Given thatInitial distace between electron and charge Q isri=27.5 cm=0.275 mcharge Q=-4 nc…

Q: A cara moving aong theaand s velscty, vares wth sme as shown in the sgure whatis he epacement, a, of…

A: As we know the area under given curve for velocity-time graph is displacement . So, we will break…

Q: Do the complete derivation for Equation when the source and receiver are receding with relative…

A: Given :   complete derivation for Equation when the source and receiver are receding with relative…

Relativistic Energy and Momentum

According to classical physics, time flow is the same for every observer. But according to einstein's theory, time flow is different for different observers. The idea that time flow is not the same for all may sound strange because we may not experience this effect in everyday life. This effect is only observed when an object moves with some velocity comparable to the velocity of light. This velocity is termed relativistic velocity.