U1 25V R1 50 R6 39 ww 250 R2 www 375 R5 www R3 150 U2 2.5 M R4 27.5 ww

Q: Find the value of kinetic energy mass of ball-2 kg Velocity=1.2 m/s

A: Write the given values with the suitable variables. m=2 kgv=1.2 m/s Here, m is the mass of a ball…

Q: Compute for the current across the circuit.

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Q: Which of the following is an INCORRECT generalization about light?*         Light should pass…

A: Refraction : It is defined as the phenomenon of bending of light from one medium to another.

Q: A child throws his basketball upward from the ground. The motion of the ball can be described by the…

A: Given: The equation of the position of the object. s=16t-t2…

Q: Given data: Distance to covered by car-20 m Time to cover the distance=2 s Find speed

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Q: 0/ Show that a free electron at rest cannot absorb a photon.

A: It is because energy and momentum cannot be simultaneously conserved if a free electron were to…

Q: On frictionless table, a 3-kg block moving 4 m/sec to the right collides with an 8-kg block moving…

A: Given: The mass of the first object is 3 kg. The initial velocity of the first object is 4 m/s to…

Q: Find momnetum Mass of car-20 kg Velocity=10 m/s

A: Given data : Mass=m Velocity=V   Required : Momentum

Q: A 0.844 kg spring with force constant equal to 75 N/m oscillates with simple harmonic motion along…

A: mass = m =0.844 kg force constant = K = 75 N/m

Q: About the "magician's twins" C.S lewis and the case against scientism". What are the importance of…

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Q: calculate the Schwarzschild radius of a black hole with a mass 20 times the mass of the Sun.

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Q: Given data: Distance to covered by car-20 m Time to cover the distance=2s Find speed

A: Speed = distance/time

Q: 1. If the incoming angle from the air is 20⁰ from the normal. Air (1.0) a. What angle is light…

A: Given data: Incident angle θi=20o Refractive index: air n1 = 1.0 flint glass n2 = 1.61 water n3 =…

Q: The time. 7. in seconds, a pendulum takes to move back and forth once is 2/7 times the square root…

A: Given : The time (T) in seconds, a pendulum takes to move back and forth once is 2/7 times the…

Q: In one cycle, a freezer uses 785 J of electrical energy in order to remove 1950 J of heat from its…

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Q: An independent and constant current source is supplying 0.6 ampere to a uniform copper conductor…

A: rinner = 7mm router = 10mm I  = 0.6A Resistivity = 2.4*10-8ohm electron per cubic meter = 6.4*1024…

Q: 2. A steel wire having cross-sectional area 1 mm' is stretched by 10 N. Find the lateral strain…

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Q: You and your friend are moving a 82kg box across the floor at a constant speed.  You are pushing on…

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Q: The SI unit for electric current is dimensionally equivalent to: ㅇ[c] [][] [c] - 1 [c][s] ㅇ[][c]

A: A stream of charged particles, such as electrons or ions, moving through an electrical conductor or…

Q: For the items that will follow in the next page, it may be better to solve the electric flux for…

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Q: A brass rod is .500 m long at 20.0°C. What is the length of the rod if it is heate to 50.0°C?

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Q: How much tension must a cable withstand if it is used to accelerate a 1800-kg car vertically upward…

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Q: If a 4 Volt battery is connected across point A and B, Find the ENERGY STORED in these network of…

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Q: Instead of being left to stand in the room, the cup of 92°C soup is placed in a freezer whose…

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Q: 3. Provide 1 sample problem about refrigerator, diesel cycle, and otto cycle. With this, provide a…

A: Refrigerators work by causing the refrigerant circulating inside them to change from a liquid into a…

Q: Bernoulli's equation can be derived from the conservation of: O volume O energy O angular momentum O…

A: The mathematical equation of Bernoulli's Equation is : P+12ρv2+ρgh=Constant Here, P is the pressure,…

Q: when a student steps on a bathroom scale inside an elevator that is ar rest, the cale reads 490N.…

A: Force brings about motion and changes in it. Free body diagram gives whole idea of the forces…

Q: Using the diagram above: Circuit is powered by 4 AA batteries each in series that are 1.5 V. The…

A: Given:  Capacitance = 50 mF = 0.05 Farad R1 = 10 ohms 4 batteries in series with 1.5 V

Q: Four charged particles are arranged in the manner as shown below. The four have the same magnitude…

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Q: Find the value of current Voltage=10 Volt Resistance-2 Ohm

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Q: A bacterial population follows the law of exponential growth. If between noon and 3 p.m., the…

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Q: m= 30 kg V = 10 mls Find runetic energy.

A: Given data : Mass=m Velocity=V   Find : Kinetic energy

Q: A person walked five times back and forth in a 90 m distance and recorded the following strides:…

A: Distance, d = 90 m Strides i.e. paces = (63.15, 63.45, 63.00, 63.15, & 63.50 ) m Pace factor, PF…

Q: Three identical uniform rods are each acted on by two or more forces, all perpendicular to the rods…

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Q: What is the value of the electric flux if the amount of electric field lines coming in and out of…

A: Given : Electric field lines coming in and out of the gaussian surface are equal

Q: 4. A motor having an efficiency of 90% operates a crane having an efficiency of 40 %. With what…

A: Speed of the object lifted depends on the Ratio of the gear or pulley  which enable the motor shaft…

Q: Mirage Explanation: Thunder Fiber optics

A: Dear student Total internal reflection is the phenomenon in which when light from dense medium…

Q: 1. (13.15) An aluminum sphere is 8.75 cm in diameter. What will be its % change in volume if it is…

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Q: Suppose you are designing an amplifier and loudspeaker system to use at a country concert. You want…

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Q: Given data: Distance to covered by car 23 m Time to cover the distance=2 s Find speed

A: Given: The distance traveled by the car is 23 m. The time taken by the car is 2 s.

Q: D. The focal point 4. An object is placed at the focal point in front of a concave mirror. The image…

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Q: The objective(s) of the "Ohm's Law Lab" is(are): All of the above O To compare the potential vs.…

A: Ohm's law   Current through a conductor is directly proportional to potential applied across it . V…

Q: In which of the following arrangements can TIR most likely happen? I. Refractive index of the first…

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Q: Which of the following is false? O The resistance of a conductor has a dependence on the…

A: The resistance of a conductor depends upon the resistivity, length and cross-sectional area of the…

Q: 2 Ω A Μ 7Ω 20 V Compute for current C. 5 Ω B 30 V 5 Ω Μ 6Ω 20 V Μ 3 Ω C

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Q: Four charged particles are arranged in the manner as shown below. The four have the same magnitude…

A: Coulomb’s law calculates the magnitude of the force F between two point charges, q1 and q2,…

Q: A racetrack for a soapbox derby is 300 m long and a vertical drop of 28 m. (a) Calculate the change…

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Q: Problem 1: Light of frequency 9.95 x 1014 Hz ejects electrons from the surface of a metal. If the…

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Q: Find the density

A: Given data : Mass=m Volume=V   Required : Density

Q: What is the net electric flux in S4? -485.65 Nm^2/C       485.65 Nm^2/C       -225.88 Nm^2/C

A: flux = (q1+q2+q3+q4 - q5 - q6 - q7-q8-q9)/(8.854*10^-12)

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.