A train, consisting of three coaches A, B and C, linked together via tow-bars, is moving towards the right. A and C are coaches with engines and have a mass of 1.0 x 10 kg each, while B is an un-powered coach having a mass of 8.0 x 103 kg. The driving force of the engines in A and C are 2.0 x 104 N and 1.8 x 104 N respectively. The drag force on A is x 10° N while B and C experience the same drag force of 6.0 × 10° N. 9.0 Direction of motion

Q: Archaeologists used pieces of burned wood, or charcoal, found at the site to date prehistoric…

A: Half life of Carbon -14 is (H) = 5730 years. It is given that 90% of C-14 had decayed = 1-0.90=0.10…

Q: Strut AB of the 1-m-diameter hatch door exerts a force of 450 N on point B. (Figure 1) Figure O 0.5…

A:

Q: c) Vedica (V) has the following utility function of wealth: u = 14/3 Vedica is a potential…

A: Answer: As per the given data, It is discussed mathematically below on the statement with the given…

Q: A soccer ball with mass 0.420 kg is initially moving with speed 2.00 m/s. A soccer player kicks the…

A: The soccer ball has a mass of 0.42 kg, and is moving with an initial speed of 2 m/s The ball is then…

Q: ergy at point B

A: Given: Object's mass is m=0.36 kg Speed of the object is 5 m/s Kinetic energy of object is 8 J

Q: Two planes. A and B, are flying at the same altitude. Their velocities are 4= 300 km/h and 1=640…

A:

Q: 17. A child decides to take her cat on a walk, but the cat does not cooperate. The child pulls on…

A: mass of cat (m) = 2.5 kg Applied force (F1) = 20 N Direction of applied force (θ) = 30 degree above…

Q: Three people pull simultaneously on a stubborn donkey. Jack pulls directly ahead of the donkey with…

A:

Q: (a) What are the conditions for a particle to perform uniform circular motion about a fixed point?…

A: Uniform circular motion are often described because the motion of an object during a circle at a…

Q: The equation yı = 10-" sin(6.6t – 0.2x) represents a plane wave travelling in a medium along the…

A:

Q: Ex. 4) Solve the equation d iħ dt \b(t) wo Wi cos wt Wi cos wt b(t) -wo

A: For solving the equation, we first need to simplify the matrix.

Q: 3. An airline passenger drops a coin while the plane is moving at 245.0 m/s. What is the velocity of…

A:

Q: A block of mass m = 2.3 kg is dropped from height h = 75 cm onto a spring of spring constant k =…

A: we know thatpotential energy of the block=mg(h+x)which is equal to the the spring potential energy…

Q: The following graph represents the movement of a car from t 0s to 1 8 s. Calculate Graf berikut…

A:

Q: (a) What is the momentum in kg · m/s of a garbage truck that is 1.20 x 104 kg and is moving at 30.0…

A:

Q: scale in the elevator's floor measures the weight of the passengers, and it has d) says that the…

A: If the elevator is moving at any constant speed The acceleration is equal to zero and weight is same…

Q: distance will it be

A: Given: Point charge is 9.5μC potential is 120 V Distance is 1 mm

Q: 67.1. Given the following values for P, P2, and /AL1, calculate AH2: (a) Pi(0, 0, 2), P2(4, 2,0),…

A: ∆H2 . Given, a I1ΔL1=2πaz μA·m,   P10, 0, 2 , P24, 2, 0 b I1ΔL1=2πaz μA·m,   P10, 2, 0 , P24, 2, 3 c…

Q: Suppose there is a planet that has a uniformly massively charged Iron core with average charge…

A:

Q: d) How would your answer change for parts b and c if the survivors were stuck in a freshwater lake?

A: The only difference that happens in the calculations when the survivors are stuck in a freshwater…

Q: Two particles are fixed on the x axis. Particle 1 of charge 41 = 1.00 µC is at the origin. Particle…

A:

Q: A beam of white light consists of plane waves of wavelengths from 0.4 µm to 0.7 um. (1 µm = 10 m).…

A: When a white light passes through one medium to another medium having density difference or…

Q: 25. An object of mass 3.00 kg is subject to a force Fx that varies with position as in the Figure.…

A: Given, Mass of the object =3.00 kg The graph of Fx vs x is provided. We have to find the work done…

Q: Calculate the rotational inertia of a solid, uniform sphere with a mass of 17.6 kg and a radius of…

A: Given data:  An uniform solid sphere Mass (M) = 17.6 kg Radius (R) = 0.56 m Required: The rotational…

Q: Q6. A ball A of mass 0.2 kg is moving on a frictionless surface with a speed of 3 m/s towards a ball…

A:

Q: A 2100-turn solenoid is 1.9 m long and 15 cm in diameter. The solenoid current is increasing at 1.4…

A: Given data:The no. of patches on the solenoid is n=2100.The length of the solenoid is l=1.9 mThe…

Q: 目x 4. A swinging pendulum moving in SHM completes two cycles every 5.0 s. It moves a tota distance…

A: Given: The time taken by the pendulum to complete two cycles is 5 s. The  distance covered in 1…

Q: Find i and Vo in the circuit given below

A:

Q: A child applies a force parallel to the x-axis to a 10.0 kg sled moving on the frozen surface of a…

A:

Q: PRACTICE ANOTHER A home run is hit in such a way that the baseball just clears a wall 18.0 m high,…

A:

Q: An evacuated tube uses a voltage of 9.00 kV to accelerate electrons from rest to hit a phosphor…

A: The voltage used is 9.00 kV.  The kinetic energy of electron will be given by  K=eV where e is the…

Q: Explain giving reasons, if the object shown is accelerating or not. (Don't just say YES or NO, you…

A: Here,  in the picture, the image between the two successive images is increasing as one moves from…

Q: Calculate the moment MB of the 670-N force about the bolt at B. Simplify your work by first…

A:

Q: The only stable isotope of gold (element symbol Au; atomic number 79) is 197AU. The atomic mass of…

A: Given mp = 1.007276 u mn = 1.008665 u M(Au197 ) = 196.966543 u

Q: (b) What is the pressure increase in the fluid in a syringe when a nurse applies a force of 10 N to…

A:

Q: A projectile is fired straight up from the surface of the Moon (mass 7.3 × 10²² kg; radius 1740 km)…

A: Mass of the moon M=7.3×1022kgRadius of the moon R = 1740 km = 1.74×106mInitial speed of projectile…

Q: 1/2 (2.7) A certain force is given by 2р cos @ F = r. p3 sin 0 P. in spherical coordinates a)…

A:

Q: A rectangular loop (area = 1.4 m²) turns in a uniform magnetic field, B = 1.3 T. When the angle…

A: Given Data:- Area of the loop is A=1.4 m2 Magnetic field is B=1.3 T Angle between the magnetic field…

Q: In the figure below, the masses of each object are: m₁ = 1 kg, m₂ = 4 kg, m3 = 4 kg. The labeled…

A: Calculate the x coordinate of the center of mass.…

Q: 123net 6-04t 0.034* F33 net - 0.068N - tan ) = 26. 91° (e7NID) (Suc) ( &u 12MC ↑ • An 8µC charge is…

A: Given, Charge, q1 = 8 μCq2 = -5 μCq3 = -12 μC

Q: You are looking for your iPhone and have decided to look under your couch. The couch is 2.7 m long…

A: The length of the couch is L=2.7m mass of the couch is m=94.9kg From question couch lifted from one…

Q: (a) Find the speed of the cab just before it hits the spring. 9.39 m/s

A:

Q: 1. Sketch the electric field lines for a positive point charge. 2. If the point charge above has a…

A: The potential due a charge q at distance r is viven as V= Kq/r where q is in columb and r is in…

Q: Mary applies a force of 72 N to push a box with an acceleration of 0.41 m/s?. When she increases the…

A:

Q: At one instant a bicyclist is 45.0 m due east of a park's flagpole, going due south with a speed of…

A: Given: Initial velocity V0→=-12.0 ms-1 j^, Final velocity V→=12 j ^ms-1, Initial displacement…

Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.