A block wood of mass 8 kg is moving at a speed of 6 m/s-1. Calculate tha kinetic energy in Joules.

Q: What should be the stopping potential for photoelectrons if the target material used is Platinum and…

A: The photoelectric effect states that Ek = hf − ϕ

Q: An object dropped from a cliff falls with a constant acceleration of 10 m/s². Find its speed 5 s…

A: Given data:  Initial velocity (u) = 0 m/s Acceleration (a) = 10 m/s2  Time (t) = 5 s Required: Final…

Q: Your physics book is at rest on a table as shown, there's a weight force and a normal force acting…

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Q: 80 A Geiger-Mueller tube is a radiation detector that consists of a closed, hollow, metal cylinder…

A: This is question  of a Geiger mueller tube .

Q: Air breaks down (loses its insulating quality) and sparking results if the field strength is…

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Q: The resistivity of an ohmic material depends on ______. 1 p A. Resistance B. Length of the conductor…

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Q: Parallel straight wires carrying steady currents in the same direction each other. The forces…

A: If two parallel current carrying wires carry current in same direction then they attract each other…

Q: From 12 m/s to 54 km/hr, a 1500 kg jeepney accelerates that produce a force of 450 N. Find a) the…

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Q: Content Attempti rogress A string trimmer is a tool for cutting grass and weeds; it utilizes a…

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Q: 1. Two blocks are connected by an ideal string that passes over a pulley. Both lie on frictionless…

A: a) Draw the free-body diagram of the system.

Q: The answer key to this problem is stated as follows: x(t) = (4.0 cm)cos[(2π/8.0 s)t - π/3.0] Did…

A: On the 2nd page of answer there was a mistake. cos-1ϕ=12thus ϕ can have values of 600 or -600i.e.…

Q: 1.)A barrel contains a 0.120 m layer of oil floating on water that is 0.250 m deep. The density of…

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Q: (b) A 1.5 kg box moves back and forth on a horizontal frictionless surface between two different…

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Q: If an object has a mass of 5slugs at sea level, what would its mass be at a location where the…

A: Given  Mass (m) = 5 slugs    ; at sea level    Acceleration due to gravity at  an unknown location (…

Q: It takes 212 kJ of work to accelerate a car from 21.7 m/s to 29.2 m/s. What is the car's mass?

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Q: If the Moon rises at 7 P.M. on a particular day, about what time will it rise 2 days later? P.M. ✓X…

A: this is question  about moons orbit how much it takes time for complete 1 orbit around earth.

Q: i. Explain the principle of rigid bodies ii. Discuss the concept of moment of forces.

A: Solution: rigid body and moment of forces related of physics of mechanics

Q: You wake up one morning to find yourself in a strange room with opaque walls, and no visible doors…

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Q: Part A A rope is wrapped around a wheel with radius 2 feet.  If the radius of the wheel is…

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Q: A 52.6-kg box is being pushed a distance of 7.31 m across the floor by a force P whose magnitude is…

A: Solution,

Q: A source of light having two wavelengths 500 nm and 550 nm of equal intensity is incident on a slit…

A: We have a source of light having two wavelengths λ1=500 nm  and  λ2=550 nm which are incident on a…

Q: Billy and his sled have a mass of 39.7 kg. He is at rest at the top of a 10.04 m long hill that has…

A: Apply the energy conservation equation between the top of the hill and the bottom of the hill to…

Q: A car moving at 90 km/h brakes and stops in 5 seconds. What is the magnitude of the car's…

A: Given data:  Initial velocity (u) = 90 km/h Time (t) = 5 s Final velocity (v) = 0 m/s Required: The…

Q: 1.)A barrel contains a 0.120 m layer of oil floating on water that is 0.250 m deep. The density of…

A:

Q: Given the movement of the magnet relative to the wire loop, what will be * 1 point the direction of…

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Q: 11. Vectors A and B are shown. What is the magnitude of a vector ĉ-Ã-B?

A: Required: C

Q: QUESTION 5 What is the kinetic energy of a golf ball weighing 0.10 kg and travelling at 42.1 m/s?…

A: (5)Given  Mass (m)  = 0.10 kg  Velocity (v) = 42.1 m/s    Kinetic energy of the ball : KE = (1/2)…

Q: Calculate the work done by a student in lifting a 0.5 kg book from the ground and keeping it on a…

A: Answer:-  Mass of book(m) = 0.5 kg  Height (h) = 1.5 m  Acceleration due to gravity (g) = 9.8 m/s2…

Q: B. At a certain distance from a point charge, the magnitude of the electric field is 500 V/m and the…

A: Given that Magnitude of electric field(E)=500v/m Electric potential(V)=-3.00kv=3000volt To…

Q: During a lightning storm the potential difference between a cloud and the ground can be extremely…

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Q: With the help of Huygens’ construction, explain the phenomenon of diffraction

A: According to Huygen's wave theory, every point of wave front maybe regarded as source of light. When…

Q: A box is being pulled up a hill at constant speed. Select all of the true statements about the…

A: The box is moving up the hill with constant speed since kinetic energy is given by K.E =…

Q: 4) Use Gauss' Law to find the gravitational field inside the Sphericall Shell of radius Randma…

A: We have a spherical shell of mass M and radius R. We need to find that gravitational field inside…

Q: A dielectric of x = 2 is inserted across a parallel plate capacitor. How much charge per unit volt…

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Q: How long will it take 400 C of charge to pass through a circuit whose current is 1.5 A?

A: Given data :                Charge (Q) = 400 C               Current (I) = 1.5 A

Q: Given data: Force=12.88 N Displacement=0.08 m Find Work done

A: Introduction :  In this question we are provided with value of  force and displacement.with these…

Q: Calculate the electric field at the center of a square 52.5 cm on a side if one corner is occupied…

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Q: Assume the magnitude of the electric field on each face of the cube of edge L = 1.03 m in the figure…

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Q: A car moving at 90 km/h brakes and stops in 5 seconds. What is the magnitude of the car's…

A: Apply the first kinematic equation. Here, v is the final velocity, u is the initial velocity, a is…

Q: What force is necessary in order to change the velocity of a 2.00 kg object from -4.00 m/s to +3.00…

A: Given data : Initial velocity=U Final velocity=V Time=t Mass=m   Required : Force

Q: According to the World Energy Council, the average household in Mexico consumes about 1600 kWh of…

A: Dimension of solar panels=(1×1)  So area of solar panel=1 m^2 Annual solar energy potential of panel…

Q: Find the impulse value Force 1 N, Time=2.2 s 1:1 N*s 2:2 N*s 3: 3 Nºs 4: 2.2 N s

A: Introduction :  In this question we are provided with value of force and time . with these data we…

Q: Find momentum Mass=8 kg Velocity=0.03 m/s

A: Given Mass (m) = 8 kg  Velocity (v) = 0.03  m/s    Momentum is given as :- Momentum (P) = mv…

Q: Shaina is 1.7m tall and performs a bicep curl starting at maximum extension and going to full…

A: The solution for this  question is given below...

Q: If frequency of sound wave 110 Hz and speed of sound 333 m/s. Find wavelength

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Q: A vehicle is running with a velocity of 5m/s. If the momentum of the vehicle is 5000 kg m/s, what is…

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Q: 3. Suppose a box enters a region of frictional floors, as seen in Fig. 3. x = 0 μ1 H₂ f3 μ4 μ5 μ6 d…

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

Q: How will a positive charge move along a uniform electric field, from high potential to low…

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Q: Which of the following experiments helped prove that light has a dual nature i.e. it exists both as…

A: Double slit diffraction demonstrates that light had both characteristics of  matter and energy (…

Q: If frequency of sound wave 110 Hz and speed of sound 333 m/s. Find wavelength

A: We know thatλ=vfWhereλ=wavelength of wavev=speed of wavef=frequency of wave

Relativistic Energy and Momentum

According to classical physics, time flow is the same for every observer. But according to einstein's theory, time flow is different for different observers. The idea that time flow is not the same for all may sound strange because we may not experience this effect in everyday life. This effect is only observed when an object moves with some velocity comparable to the velocity of light. This velocity is termed relativistic velocity.