10. A coin is placed 10 cm from the axis of a rotating disk. The disk starts from rest and accelerates from rest to 90 rpm in 3 minutes. a. How many revolutions has it turned in this time? b. Find the coin's tangential speed and tangential acceleration at one minute. c. Find the radial acceleration at one minute. d. Find the coefficient of friction if the coin slides off when the angular speed is 60 rpm.

Q: Q3. An object moves with constant acceleration 4.00 m/s? and over a time interval reaches a final…

A:

Q: 5. In a 580 m stretch of a river, the speed of the current is a steady 5.0 m/s [E]. Hov long does it…

A: Given data in question.  Length of river stretch =580 m Speed of current =5.0 m/s Speed of boat =7.5…

Q: Q3) A child rolls a ball of mass 0.025 kg (A) along a table at a speed of 2.3 m/s to collide head-on…

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Q: A planet is observed orbiting a 6.5 solar mass star (1 solar mass = 2e30 kg) with an orbital period…

A: here the planet is orbiting a star, let the mass of the planet be m1 and moving with a velocity v,…

Q: Find the focal length of a mirror that forms an image 2.30 m behind a mirror of an object that is…

A: The mirror formula is  where, u is the distance of object, v is the distance of image and f is the…

Q: Can you show your work please

A: (i) Given data: The work done to move the charge is W=8.5x10−19 J.

Q: 7.) An 87-g box is attached to a spring with a force constant of 82 N/m. The spring is compressed 11…

A: The mass of the box: m=87 g=0.087 kg The force constant of the spring: k=82 N/m The initial…

Q: wered nswer A block of copper with mass mou =237g, (CCu 3857) is at an kg C initial temperature of…

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Q: 4. Eddy throws a little sand bag so that it lands on the top of a vertical post that is 4 m high.…

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Q: Élodie is baking baguettes in the galley of a relativistic train that is traveling at constant…

A: Given: Baling time measured in the train's frame is 30 min. The length of the baguette in the…

Q: Two satellites, A and B, are in different circular orbits about the earth. The orbital speed of…

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Q: An 6 kg object is flying at speed 5c/8. Calculate its kinetic energy, in units of kg c2.

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Q: A 135-turn coil has a diameter of 27.9 cm. The coil is placed in a spatially uniform magnetic field…

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Q: n asteroid has asteroid has a long axis of long axis of 77

A: Length of long axis, Speed , v = 0.250 c

Q: An electron with a mass of 9.11 x 10-³¹ kg is accelerated by a particle accelerator to a speed of…

A: Write the expression for the relativistic mass.

Q: An aluminum rod is 32 cm long with a 2.0 cm radius. One end is placed in a very large container of…

A: volume of ice cube = 0.25*0.25*0.25 = 0.015625 m3mass of ice = volume * density of ice…

Q: can you please type, I cannot read your handwriting.

A: mass of man = M mass of tool = M/10distance moved by man d1=10 m

Q: 12. A 2 kg block has an apparent weight of 16 N when weighed under water. a. Draw a diagram showing…

A: As the block is immersed in water, the water exerts a buoyant force on the block, which acts…

Q: I need to look correct answer and show all work please

A: Step 1:Determine the given values:The kinetic energy is KE=14.8 eV.The potential energy is U=34.7…

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Q: Two-spin system 1. Consider a system with two spins S₁ and 52, both with spin 1/2. Solve the…

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Q: Observer 1 is standing on the earth and measures how long it takes a ship to travel from Earth to…

A: Time measure by an  Observer 1 is standing on the earth  = t1 Time measure by an observer 2 is…

Q: In your own words, explain why efficiency can never be 100% or more on a machine

A: Efficiency of a machine means ability of a machine to produce output with little to no waste.…

Q: 2. π The circular arc shown below has a radius R and extends from- -to The arc carries a 3…

A: Here in this question, we will consider an elementary arc length (dl), and then we can find the…

Q: 7. A bullet (100g) is fired at a velocity of 200 m/s and it then collides with a stationary block…

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Q: If m = 5 kg and M = 8 kg , find the acceleration of the masses and the tension in the rope. Show all…

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Q: When the temperature of a rod is changed, the length of the rod would change. This is called the…

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Q: An insulated container of negligible mass holds 0.800 kg of water at 45.0° C. You put a 0.0800 kg…

A: Given that: Mass of water, mw=0.800 kgInitial temperature of water, Tw=45.0°CMass of ice, mi=0.0800…

Q: If a cat repeatedly rubs against your cotton slacks on a dry day, the charge transfer between the…

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Q: The emf is & = 149 Vand the internal resistance of the battery is r;=3. A current of I =4.8A is…

A: Given Data:The emf of the battery is The internal resistance of the battery is The current in the…

Q: A particle of charge q=2.2nC and mass m=13µg has an initial velocity of vo 29 directly toward an…

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Q: 9. What is the velocity of a snail that is traveling at a rate of 5 millimeters per minute in m/sec?

A: 1 millimetres =10-3 m 1 minute =60 sec

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Q: What is the velocity of a 900-kg car initially moving at 30.0 m/s, just after it hits a 150-kg deer…

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Q: The nuclide 198 Au, with a half-life of 2.70 d, is used in cancer therapy. What mass of this nuclide…

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Q: 4. A neutron has a rest mass of 1.68 x 10-27 kg. How much kinetic energy would it possess if it was…

A: The rest mass, The relative velocity of the neutron,

Q: Q a dQ ds x dE, dE a dE X

A:

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.