what is the speed does a meter stick move if its length is observed to shrink to 0.5 m?

Q: A scooter drives 110 km in 4.5 hours. What is the speed of the car in km/h?

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Q: A plane travels 395,000 meters in 9000 seconds. What was its speed?

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Q: What is the speed of a car that travels 200 meters in 25 seconds

A: (given) Distance (s) = 200 m       Time (t) = 25 s Speed of a car is                     = (Distance…

Q: You are 1,617 meters away from a ship an Long (in seconds) does it take for you to hea

A: Given:- The Distance from the ship is d = 1617 meters  The air temperature T = 42.65o F Find:- How…

Q: A football field is about 100m long. If it takes a person 20 seconds to run its length, how fast…

A: Given data: Length of football field = 100 m Time taken (t) = 20 s Required: Speed (v)

Q: A spaceship travels at a speed of 62 ft/ms convert its speed to km/s ( by mean milisecond)

A: Given data:  Speed of the spaceship (v) = 62 ft/ms Required: Speed in km/s

Q: How fast would you have to jump off the ground in order to jump at least 10 meters in the air?

A: The change in potential energy of person during the jump must be equal to his change in kinetic…

Q: A 2,000kg car is moving at 30m/s hits a 1,500kg car moving at 12m/s going in the same direction. The…

A: The given values are, m1=2000 kgv1=30 m/sm2=1500 kgv2=12 m/s

Q: A highway patrol officer uses a device that measures the speed of vehicles by bouncing radar off…

A: Given The outgoing radar has a frequency of Fs  =95GHz and the returning echo. Speed of the light…

Q: A 1.2 ton car moving at 30 kilometers per hour bumps the rear of a 1.8 ton car moving in the same…

A: Given data: The mass of the first car, m1=1.2 ton. The mass of the second car, m2=1.8 ton. The…

Q: If a car is traveling forward at 15 m/s, how fast will it be going in 1.2 seconds if the…

A: Write the given values with the suitable variables. u=15 m/st=1.2 sa=-10 m/s2 Here, u is the initial…

Q: A car from rest takes 5 seconds to travel a distance of 30 feet. How long will it take for the car…

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Q: You are leaving for a concert that starts in 5hours and is 335 miles from your house. What average…

A: Given : t = 5 hours d = 335 miles

Q: Astronomers view light coming from distant galaxies moving away from Earth at speeds greater than…

A: Ever since the Big Bang the universe started expanding at a rapid rate. Everything in the universe…

Q: A tortoise is walking in the desert. It walks at a speed of 3 meters per minute for 93.75 meters.…

A: Given Speed of the tortoise is v=3 m/min Distance covered by the tortoise is d=93.75 m   We have to…

Q: How far is your friend's house in New York if it takes you 5 hours to get there and your speed is 35…

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Q: A vehicle is running with a velocity of 8 m/s. If the of the vehicle is 8800 kg m/s, what is it's…

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Q: The kinetic energy E of an object varies jointly with the object’s mass m and the square of the…

A: The object’s kinetic energy can be represented as, Here, m, v, and k represent the object’s mass,…

Q: A 36.5 kg child on a sled slides down a hill, reaching a speed of 9.8 m/s. How high was the hill (in…

A: The speed at the bottom of the hill,

Q: A car moving at 70 km/hr skids 42 meters with locked brakes. How far will a car traveling initially…

A: initial speed (u) = 70 kmhr = 70×518 ms= 19.44 msFinal speed (v) = 0 kmhr = 0×518 ms= 0msDistance…

Q: A 500 kg roller coaster car is moving at the top of a 20 m high hill. If its velocity at the bottom…

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Q: If distance travelled by a train is 495 km in 4 hours 30 minutes, what is its speed?

A: Given  Distance travelled by train (d) = 495 km Time taken (t) = 4 hours 30 minutes…

Q: a 1 kilogram ball is dropped from the top of a building that is 180 meters high. what is the…

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Q: Two cars A & B are driving away from each other and sounding their horns. You are the driver of car…

A: Given that, The speed of car B, vB is 23.6 m/s. The frequency of the sound, f is 885 Hz. The speed…

Q: A car is moving at a speed of 5 m/s in 4 s, he increases its speed to 15 m/s. What is acceleration ?

A: Introduction :  In this question we are provided it value of time taken , initial velocity and final…

Q: Kinetic Energy is: KE= mv², where KE and v =velocity. What is the kinetic energy of a 1,093 kg car…

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Q: What is the velocity of a car moving north that covers 65 miles in 2 hours?

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Q: What is the mass of a bullet (in kg) that is moving with a velocity of 900 m/s and has a momentum of…

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Q: A 1-kilogram ball has a kinetic energy of 50 joules. The velocity of the ball is-

A: Mass (m) =1kg Kinetic energy =50 joules Velocity =?

Q: The driver of a car steps on the brakes, and the velocity drops from 35 m/s to 5 m/s in 4 seconds.…

A: Given:  initial velocity, u = 35 m/s  final velocity,v = 5 m/s  time, t = 4 s

Q: Oliver traveled 100 km at a certain speed. In going back, he increased his speed by 10 km/hr. If it…

A: Let the original speed of Oliver be u. So, the velocity of Oliver in going back will be:

Q: What is the momentum of an airplane that has a mass of 25,000 kg and is traveling at 40 m/s?

A: We have to calculate the momentum of an airplane that has a mass of 25,000 kg and is traveling at 40…

Q: What Is The Mass Of Any Kind Of Object That Travels At The Speed Of Light?

A: Large velocities cause changes in the size and mass of moving objects as well as in the apparent…

Q: What is this equation in physics

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Q: A train travelled 440 meters in 1 minute how many km an hour was it traveling

A: Train travelled =440m Time taken by train to travel for 40 m =1min

Q: A car (mass = 1,159.8kg) is traveling at 25.5m/s when it collides head-on with a SUV (mass =…

A: Given: Car mass, mc=1159.8 kg Car's velocity before collision, vci=25.5 m/s SUV mass, ms=2333 kg SUV…

Q: You were running on a treadmill for 5 minutes.  Your measured heart beat is 125 beats per minute.…

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Q: A car accelerates from 25 km/hr to 55 km/hr in 30 seconds, what is the acceleration?

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: A scientist drops two balls A and B from the same height. Ball A falls 4 meters in the 1st second, 9…

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Q: wendy walks 10 m in one direction at 2m/s, then runs 6 m in the same direction at 6m/s. Next, she…

A: Total distance : d = 10 m + 6 m + (6 m/s x 4 seconds) d = 10 m + 6 m + 24 m d = 40 m

Q: Physics student' s measured the width (w) and length (L) of a sheet. If W= 3.56 * 0.04 andL= 3.25…

A: width = 3.56±0.04  cm Length = 3.25±0.05 cm

Q: A car moves 105 meters within 5 seconds. What is its velocity over that period?

A: Given: The displacement if the car =105 meters. The time taken by the car to travel this distance =5…

Q: A rocket is traveling in outer space with a velocity of 12,000 m/s. How long will it take to travel…

A: Write the equation relating time velocity and distance

Q: A car in a movie moving at 20 m/s flies off a cliff that is 74.3 m tall. How far does the car travel…

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