A particle known as a pion lives for a short time before breaking apart into other particles. Suppose a pion is moving at a speed of 0.990c, and an observer who is stationary in a laboratory measures the pion’s lifetime to be 3.5 x 10^8s. (a) What is the lifetime according to a hypothetical person who is riding along with the pion? (b) According to this hypothetical person, how far does the laboratory move before the pion breaks apart?

Q: 1.) A plastic ring lays in the x-y plane center at the origin with radius R has a linear charge…

A:

Q: A power drill starts from rest and undergoes uniform angular acceleration for a period of 0.175 s…

A:

Q: Activity: If a 500-V dc power supply is used to charge a 25-µF capacitor. After the capacitor is…

A:

Q: The linear attenuation coefficient for 2.0-MeV gamma rays in water is 4.9 m-1 and 52 m-1 in lead.…

A:

Q: HW QI) Knowing that the coefficient of friction between the 25-kg block and the incline is H. =…

A: only one question per post . please post other remaining questions.

Q: What is the nuclear equation for 0 Th (beta decay)? (Just enter a, b, c or d without a period). a.…

A: In all nuclear reaction mass number (charge ) and mass number remains conserved.

Q: Find the net torque on the wheel in the figure below about the axle through O perpendicular to the…

A:

Q: 14. Saturn's rings a. were created by its incredibly large gravitational capture of asteroids and…

A: Correct option (a). were created by its incredibly large gravitational capture of asteroids and…

Q: • A car of mass m accelerates from rest along a level, straight track, not at constant accler-…

A:

Q: Find the half-life (to the nearest year) of krypton if r = −0.0641

A:

Q: When the distance between two stationary point charges is tripled while the charge on each particle…

A: Distance tripled Charge doubled

Q: Light with wavelength å passes through a narrow slit of width w and is seen on a screen which is…

A: D=2.4 md=1 mm = 1 x 10-3 mw=λD  the definitions of D,d and w can be observed in the question

Q: In an interference experiment using a monochromatic source emitting light of wavelength 1 = 600 nm,…

A: D= distance between  screen and slit =7.4 mλ= wavelength =600 nm = 600×10−9 m d=distance b/w slits…

Q: Write down the expression for period of a pendulum of length / and the gravitational field strength…

A:

Q: body of mass 10 kg, is moving with a velocity of 5 m/s in a circle of radius 5 m, what is the…

A:

Q: What is the RMS speed of a CO2 molecule at 27.00 C? Sone useful information: MCarbon = 12 g/mole and…

A:

Q: We have a rod-shaped space station of length 548 m and mass 4.19 x 10^6 kg, which can change its…

A:

Q: A straight conductor of fixed length / is moving at 45 degrees to a uniform magnetic field of…

A:

Q: many It take a photon to travel from the Sun to ne Earth? min (b) What is the energy in ev of a…

A: a) As we know that                       The distance between the earth and sun is d = 1.5×108km…

Q: True / False: In an elevator the acceleration is magically measured to be -3.00 m/s2 (where + is up…

A: Acceleration is the rate of change of velocity with respect to time. Its unit is m/s2. Newton's…

Q: Find the value of force applied if work done is 220 J and displacement is 20 m

A:

Q: Calculate the scalar product v· F.Assume the velocity has only components found in the previous…

A:

Q: A thermometer reads 111°C inside a burning house. It was then taken outside where the temperature is…

A:

Q: Consider two pendulums with lengths l1 and l2. Express the ratio of their lengths /1/l2 in terms of…

A: T = 2πl/g  Here T is the time period of the pendulum  l is the length of the pendulum g is the…

Q: ) A hollow sphere is held below the surface of a lake by a cord anchored to the bottom of the lake.…

A: Explanation: Buoyant force is a force a fluid exerts on a submerged object. It can be calculated as:…

Q: 3. Given the diagram, identify where the object is placed and describe the image being formed.…

A:

Q: ind the momentum car that has a mass of 1205 kg nd a velocity of 15 m/s ?

A: Mass of a car is,                              m = 1205 kg The velocity of the car is,…

Q: 2. A magnetic ficld is given by B an expression for the magnetic flux through a square of side 2xo…

A:

Q: An astronaut uses his spaceship to maneuver across space at a speed of 0.90c relative to the earth.…

A:

Q: A 0.9 m x 0.3 m rectangular coil with 15 loops is placed on a changing magnetic field. The magnetic…

A:

Q: Cheetah left trip marks that were 390 m in distance. Assuming that the Cheetah trip to a stop with…

A: You have posted multiple questions. According to company policy, we will answer the 1st question…

Q: • Two cars are moving. The first car has twice the mass of the second car, but only half as much…

A: The original speed od tge two cars the first V1=3.534m/s And the second V2= 7.068m/s

Q: urrent Attempt in Progress Calculate the rotational inertia of a meter stick, with mass 0.687 kg,…

A: Given: The mass of the stick is 0.687 kg. The leght of the stick is 1 m. The mark is 42.2 cm = 0.422…

Q: A sky diver drops his smuggled 1kg weight from physics lab out of the air plane before he jumps,…

A:

Q: Find the speed of an ocean wave whose vertical displacement y as a function of time t is given by…

A:

Q: • An engine expends 40 HP in moving a car along a level track at a speed of 15 m/s. How large is the…

A:

Q: tween ropes elevator and hydraulic lift ?

A: Rope elevator:-  We know that the roped elevator is consist of a rope or cable pully and this type…

Q: A thin, converging lens has a focal length of 9.9 cm. If an object is placed 34 cm from the lens,…

A:

Q: The figure shows wire 1 in cross section; the wire is long and straight, carries a current of 4.31…

A:

Q: The uniform solid block in the figure has mass 49.8 kg and edge lengths a = 0.797 m, b = 1.33 m, and…

A:

Q: In a Young's interference experiment, the two slits are separated by 0.155 mm and the incident light…

A:

Q: Q/the earth rotates around itself one cycle 2n in 24h,and the radius of the earth is 6000 km. the…

A:

Q: Two vectors A and B have precisely equal magnitudes. For the magnitude of Á + B to be 100 times…

A:

Q: 13. Water is flowing in a fire hose with a velocity of 1.0 m/s and a pressure of 200000 Pa. At the…

A:

Q: A particle has a rest mass of 6.95 × 10-27 kg and a momentum of 5.59 x 10-18 kg-m/s. Determine the…

A:

Q: Calculate the separation of the longitudinal modes of a GaAs laser, when the length of the laser is…

A:

Q: A 1.5 metric ton car is to be lifted by a hydraulic system through a piston with a diameter of 10…

A: Given: The mass of the car is 1.5 metric ton = 1500 kg. The diameter of the large piston is 10 cm.…

Q: A graduated cylinder with glycerol has an initial reading of 100 mL. After dropping a wooden cube,…

A: First we have to calculate the volume of wooden cube

Q: Two identical positive charges and a negative charge are fixed at the vertices of an equilateral…

A: The angle between two forces is 60degree

Q: Find the energy of the following. Express your answers in units of electron volts, noting that 1 eV…

A: