When the speed of your car is doubled, by what factor does its kinetic energy increase? a. sqrt of 2 b. 2

Q: Question 5 .... A current of 3.70 A is carried by a 250 m long copper wire of radius 1.25 mm. Assume…

A: current (i) = 3.70 A Length (L) = 250 m radius (r) = 1.25 mm electronic density (n) = 8.47×1028 m-3ρ…

Q: 9. What does a phase diagram tell us about a material?

A: Phase diagram:-                  Phase diagram is the diagram showing different phases of a material…

Q: What is the diameter of a solid steel ball with a mass of 30.6 kg and a density of 7.8 x 10³ kg/m³?

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Q: An object of mass m = 20 kg is pushed with a force F = 40 N parallel to a rough horizontal surface…

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Q: A 1.0 μF capacitor has a potential difference of 6.0 V applied across its plates. If the potential…

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Q: The filament of an incandescent lamp has an area of 50 mm2 and operates at a temperature of 2,127…

A: Given data as per question A  = 50mm2 T  =  2127C emissivity =  0.83

Q: rections: Briefly and concisely answer the following questions. 1. What is the net force? 2. How do…

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Q: A material with a bulk modulus of 3.5 x 10º N/m² is shaped as a cube with 2cm long edges. It is then…

A: Answer:-  Given  Bulk modulus of material (B) = 3.5 × 109 N/m2  Side of cube(s) = 2 cm  Initial…

Q: A symmetric double convex lens with a focal length of 26.0 cmcm is to be made from glass with an…

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Q: A fisherman notices that his boat is moving up and down periodically, owing to waves on the surface…

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Q: hat atomic number, mass number, and element results when a Radon-222 atom emits a gamma ray through…

A: As we know that the atomic number of Radon is 86 and mass number is 222.

Q: An object is moving along the x-axis and its position at certain periods of time were recorded. This…

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Q: A 3.25 µg particle moves at 2.09 x 10 m/s. What is its momentum p? p = kg-m/s

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Q: Question Consider the inelastic collision. Two lumps of matter are moving directly toward each…

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Q: A machine gun fires 6 bullets /s, each of mass 12 g the speed to each bullets is 16 cm/-1 then force…

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Q: Need asap.. If you increase the semi-major axis of an exoplanet's orbit, how does this affect the…

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Q: Part A An aquarium filled with water (n = 1.33) has flat glass sides whose index of refraction is…

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Q: X What is the hydrostatic force on the base of a swimming pool due to the 0/1 water alone if the…

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Q: A ball is kicked at 30 degrees above the horizontal from a cliff of a height of 100 m with a speed v…

A: In the question its given that height of the cliff (h) is 100m, velocity of the ball uo is 40m/s and…

Q: A soccer ball is kicked horizontally off a 22 m high hill and lai distance R= 53 m from the edge of…

A: Givenh= 22 mR=53 m

Q: 3. A hypothetical charge 46 pCwith mass 62 fg has a speed of 63 km/s and is ejected southward…

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Q: A glass window is installed in the window space and the intensity level of the sound entering…

A: Given, D1 = 72 dB  D2 = 47 dB  As we know, D1 = 10*log(I1/I0) -----(1) And, I1 = I0*10^(D1/10) D2 =…

Q: An object is thrown straight upward with a velocity of Vo = 14m/s. Solve the maximum height that…

A: Given that-  Initial   velocity of Vo = 14m/s. To determined that - Solve the maximum height that…

Q: A 22-gauge copper wire has a radius of 0.645 mm, is 5.00 m long, and has a resistivity r = 1.72 ´…

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Q: The total mass of this planet's atmosphere may be higher than the Earth's but the gases present must…

A: Is the escaping velocity  for this planet greater or lower than that of the earth?

Q: 5. A billiard ball rolling across a table at 1.50 m/s makes a head-on elastic collision with an…

A:

Q: 0-kg aluminum block and an 18.0 kg block are connected by a frictionless pulley. The two blocks are…

A: GivenMass of aliminium block, m1=6 kgMass of copper block, m2=18 kgθ=37°

Q: A .38 kg mass tied to the end of a 0.3m long string is pulled in a circle by If it is moving with an…

A: Given:-  Mass m= 0.38 kg  The length of the string L = 0.3 m  The angular speed ω= 9.3 rad/sec…

Q: 2. In a crystalline material, what do we mean by "unit cell"? Why is it useful of unit cells instead…

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Q: Determine a at s 1 m. (s/u) a - s(m)

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Q: A uniformly accelerated car takes 5.0s to cover 250m and another 3.0s to cover the next 250. Find…

A: Motion is either uniform or non uniform. It is all relative. There are 3 equations to solve for…

Q: Determine v at s 2 m if v=1m/s at s 0.

A: Acceleration is the rate of change of velocity and velocity is the rate of change of displacement.…

Q: Processes at the center of a nearby galaxy cause the emission of electromagnetic radiation at a…

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Q: Tick the correct answer (V) and false answer (x): a- Plasma has only charged particles..... b- Debye…

A: Here we are going to check whether it is true or false.

Q: f work is done on a system as it undergoes compression. What is the total amount of energy…

A: 1.GivenWork is done on the system , W=-360 JIncrease in internal energy, ∆U=180 J

Q: A 2 – kg box is being pulled by a force P = 30 N having an angle of θ = 35°. The surface is…

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Q: The linear absorption coefficient for 5-MeV g fourth the intensity of beam of such gamma O A. 8.9 mm…

A: GivenLinear absorption coefficient for 5 MeV gamma rays in lead ,α=78 m-1And IntensityIIo=14

Q: + Automatic Zoom 25.A block of mass m2 (10 kg) on a smooth, horizontal surface is connected to a…

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Q: Answer D and E and all of question 2

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Q: If the beam attached to a hinge is 4 meters long and weighs 600 Newtons, and the sign weighs 400…

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Q: The wavelength of sound emitted by a source is 1.2m. Calculate the frequency of this sound if its…

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Q: 1. A simple pendulum has a length of 22 inches and has a mass of 1 kg on the end. How long does it…

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Q: the orbital velocity of this planet around the Sun be faster or slower than the orbital velocity of…

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Q: A body oscillates with simple harmonic motion ac- cording to the equation x = (6.0 m) cos (37…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: Part A Two 3.0-cm-diameter disks face each other, 2.3 mm apart. They are charged to + 14 nC. What is…

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Q: An electron that has a velocity with x component 3.0 x 10° m/s and y component 4.4 x 10° m/s moves…

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Q: Two charged particles are a distance, R, apart. If the separation is increased to 3R, what is the…

A: F = electrostatic force between two charge particle is.  F = K×Q1×Q2/ R^2 R = separation between…

Q: What is the RMS speed of a CO2 molecule at 27.0° C? Sone useful information: Mcarbon = 12 g/mole and…

A: Given: The temperature of the gas is 27oC.

Q: 5. A billiard ball rolling across a table at 1.50 m/s makes a head-on elastic collision with an…

A:

Q: 2. Calculate the density of Earth if the radius of the Earth is equal to this Schwarzschild radius…

A: Given that  radius of earth is equal to Swarzschild radius.  Swarzschild radius, rs = 2GM/c² Where,…

Instantaneous Power

Power is defined in physics as the amount of energy transmitted or transformed per unit time. The watt is the unit of electricity in the International System of Units, equivalent to one joule per second.