You place your ear onto a steel railroad track and hear the sound of a distant train through the rails Δt = 3.2 seconds before you do through the air. The speed of sound in steel is vs = 6100 m/s, and the air temperature is 21° C. What is the distance, D, of the train in meters?

Q: A space probe on the surface of Mars sends a radio signal back to the Earth, a distance of…

A: Given data: The distance between Mars and Earth d = 7.86×107 km speed of light v =3×108 m/s

Q: m m 2 m Traveling with an initial speed of 128 kr, a Cessna 172 accelerates at 6000k kr during level…

A:

Q: 1 How many millimetres are there in a 1cm, b 4cm, c 0.5 cm, d 6.7 cm, e 1m?

A: As per guidelines only first question is solved here. 1. We know that 1 cm = 10 millimetres

Q: The length of a race track is measured to be 50 m, with an uncertainty of 0.02 m. An athlete…

A: Length of track is 50 mAthelete complete the race is 6.972sThe uncertainty time measurement is…

Q: Alishba wakes up late and runs to school, covering a distance of 2.55 km in a direction of [N200 E]…

A: Alishba runs to school, covering a distance of 2.55 km in a direction of [N200 E].She then goes to…

Q: The position of a moving particle in vortex is expressed as, x(t) = x0 sin(a√t + bt^2) where x0 is…

A: An equation holds correct if the dimensions of the quantities involved in both sides of the equation…

Q: The position-time graph that describes the motion of an object is given as in the figure below. if…

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Q: Bob has just finished climbing a sheer cliff above a beach, and wants to figure out how high he…

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Q: Konum (x) (cm) Zamanın karesi Ortalama hızlar (9 (s) Nokta Zaman (f) (s) (m/s) 1.5 3.5 5.8 8,5 11,5…

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Q: why F3 only * Sin30, althought there are also 2m and 2m length on the start.

A:

Q: Bob has just finished climbing a sheer cliff above a beach, and wants to figure out how high he…

A:

Q: Does that mean my answer is correct? 0.083m/s

A: A graph of displacement time is given. We need to find the average velocity of entire graph.

Q: What are the SI units for the following? (a) wavelength meters per second seconds metershertz…

A: a) The unit of the wavelength is meters. b) The unit of frequency is hertz.

Q: f (Hz) x (m) 1/f (s) 2x (m) 523.251 0.34 0.001911 0.68 587.33 0.20 0.001703 0.58 859.255 0 27…

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Q: Uncertainty Height y (m) Transit time Transit time Transit time Average transit time (s) Average…

A: Given: A table is provided having columns of height and transit time. To find: a) Graph of height vs…

Q: Two particles with charges q, = -2q , 92 = +q and masses m, = m, m2 = 2m are travelling with the…

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Q: A stone is dropped from the deck of a bridge. The sound of the splash reached the deck 3 secs later.…

A:

Q: 6. A tourist at a rim of a canyon yells "hello!" toward the opposite side. She hears the echo…

A: Given data: Total time taken to produce echo is, t=4 s. Speed of sound is, v=340 m/s.

Q: The displacement from point B to point C is  m. The displacement from point C to point D is  m. The…

A:

Q: Careless Doug is standing on the summit of Mount Whitney (elevation 14,505 ft) while his prudent…

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Q: The frequency of a sound wave is measured in hertz (Hz). The hertz is identical to per second, that…

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Q: 4 Under what circumstances is the sign of the velocity the same as the sign of the acceleration? 5.…

A: As directed only question 4 and 5 is answered.  4)  The sign of velocity is same as the sign of…

Q: Q1: The motion of Partic X =Y sinœ Cos Ø sin œ SinØ 最人 Oso 人こ Z find T

A:

Q: 6. A particle is moving on a line according to the equation of motion s=3t^2+5t+4 where s is in…

A:

Q: 3.8 micro m is equal to (1 point) A8e6 nm B. 08e3 nm C. 8e-2 nm D. 8e-3 nm E8e2 nm 4. 7.2 km/hr is…

A: The following questions lie in the topic of Units and Dimensions. These involves basic conversions…

Q: 2. A mouse enters a basement room through a hole in one of the walls. It then travels through the…

A: The position of the mouse in X-Y plane is shown below

Q: A fluid has velocity components of u = ( yt) ft/s and v = (6x - t) ft/s where æ and y are in feet…

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Q: A bat emits a sonar sound wave (343 m/s) that bounces off a mosquito 8.42 m away. How much time…

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Q: Mime 1 goes through a displacement d1→=(5.58m)î + (8.66m)ĵ. Mime 2 goes through a displacement…

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Q: The velocity-time graph of a particle in one dimension is shown in the figure below. B A 10 12 14 -1…

A:

Q: The continuity equation says that

A: Equation of continuity is a verification of mass conservation. Continuity equation says that the…

Q: Problem 2. A ball is dropped down a well and 5 seconds later the sound of the splash is heard. If…

A: t=5 secvs=330 m/s

Q: During a flare-up froma sunspot, X-rays (electromagnetic waves) are emitted. If the distance between…

A: Distance between the sun and the earth, d = 1.50×10¹¹ mTime taken to reach earth, T = ? Speed of…

Q: Bob is a pitcher and knows that the fastest he can throw the ball is about ?0=34.1 m/s.v0=34.1 m/s.…

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

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Q: person running through the forest with equation: y(x, t) = (1.1 m)cos(3.1x – 7.1t) for which x has…

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Q: You have been given a small rock sample to identify based on its density. Suppose that you use the…

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Q: What is the value of coefficients A and B? Ix 15-2 N O 5/61, 25/61 O 15/61,-35/61 O-5/61,-25/61 O…

A: Given,  Circuit  We need to calculate, Value of A and B. =?

Proper Length

The theory of special relativity explains the connection between space and time to objects that move in a straight line at a constant speed. The objects move at the speed of light. When an object approaches light speed, its mass is endless and cannot move faster than light. The most crucial postulate of Einstein's special relativity is that the laws of nature do not change in each frame of reference.