2) Identical twins stand on opposite sides of a spinning merry-go-round. What would happen to the rate of rotation of the merry-go-round if the twins a) walked to the center on the merry-go-round and sat down?

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Q: How long will it take a 1966-W motor to lift a 3720-N piano to a sixth-story window 1.4 m above?

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Q: A fleuble stretched constrained stang is to move with zexo slepe at other while the end 1-0 is held…

A: Given, Motion of a string which one end to held fixed

Q: 6. Get the resultant of the following displacement 6 ft. southwest; 10 t. north-east; 4 ft.…

A: 6.  Given: A = 6 ft (SW)B = 10 ft (NE)C=4ft (SE)D=12 ft (NW)E = 3 ft (SW)

Q: R, = 60 IT A C I, I2 12v RA= 120 R= 120 BO What is the total resistance in the circuit? What is the…

A: Recall Req=R1+R2+R3+.......Rn for series connection 1/Req=1/R1+1/R2+1/R3+......1/Rn for parallel…

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Q: The output SQNR of a 10-bit PCM was found to be insfficient at 30 dB. To achieve the desired SNR of…

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Q: 1) A very long uniform line charge has a density of 12nC/m. What is the potential difference Vab if…

A: Given that:-Uniform linear charge density, λ=12 nC/mPosition of point, A is ra=50 mPosition of…

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A: Given:-          A road wide = 60 m          Gs = 30 sec.

Q: 17. A child decides to take her cat on a walk, but the cat does not cooperate. The child pulls on…

A: mass of cat (m) = 2.5 kg Applied force (F1) = 20 N Direction of applied force (θ) = 30 degree above…

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Q: For the circuit below, determine the current passing through V,, V2, & R3. R3 = 9 0 R2 = 30 V2 = 4 V…

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Q: 29.11 You measure the electric field be- tween the plates of a 5 nC capacitor to be 2000 N C-¹. If…

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Q: A 6.0 kg box slides down an inclined plane that makes an angle of 39° with the horizontal. If the…

A: Given Data:- Mass of the box is m=6.0 kg Angle of inclination of the plane is θ=39° Coefficient of…

Q: In the figure, a constant external force P= 160 N is applied to a 20.0-kg box, which is on a rough…

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Q: A cart is being pulled slowed down by a hanging mass. What is the value of the change in its kinetic…

A: a cart is being pulled slowed down by hanging mass

Q: A traveler pulls on a suitcase strap at an angle 36° above the horizontal. If 908 J of work are done…

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Q: Resistivity (A-m) 2.65 x 10 Material Aluminum Соpper Gold Iron | 1.68 x 10 244 x 10 9.71 x 10…

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Q: the two waves by using the principle of superposition. O O 2. Interference pattern created by the…

A: Solution: Case 1          Consider the first case where using superposition principle, adding two…

Q: 30. A thin and infinitely extended plate carries the negative surface charge density -o. A positive…

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Q: (a) What is the momentum in kg · m/s of a garbage truck that is 1.20 x 104 kg and is moving at 30.0…

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Q: For the circuit below, the switch is initially open and the capacitor is uncharged. When the switch…

A: Initial current (Io) = 1.3 mA t = 3.5 seconds Current through resistor after 3.5 seconds = 0.78 mA…

Q: 2. a) (Assume the ropes and the pulley have negligible mass and that friction and air resistance can…

A: Both the masses are initially at rest, so their initial velocity will be zero. As the masses are…

Q: Required information Consider the following circuit. A 44.0 V B C₁ C₂ C3 where C₁ = 1.90 μF, C₂ =…

A: We know that in parallel combination the voltage difference is same in all terminals.

Q: 5. Rohit can consistently throw a 0.200kg ball at a speed of 12.0m/s. On one such throw, Rohit…

A: Given Mass m= 0.2 kg Initial velocity u= 12 m/s Initial gravitation potential energy=0 J

Q: Question 5 a string, in a circular arc like a pendulum in gravity. What is the direction of its…

A: As per our guidelines, we are supposed to answer only first one question in case of multiple…

Q: You need to move a hunk of gold across a river by placing it on top of a makeshift raft, which is…

A: mass of wood = 30 kg density of wood = 500 kg/m3volume of wood = mass/density  = 30/500  = 0.06…

Q: Problem 3: A 75-kg box at rest is pulled by a force of 350 N acting parallel to the ground. Using…

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Q: How does physics work?

A: Physics is a natural science that involves the study of matter and its motion through space and…

Q: In the same soil deposit, if the incident wave at the boundary is inclined at a 30° angle, determine…

A: Given:  Incident ray in the denser medium, the angle of incidence is 30 degree.

Q: When does total internal reflection occur? Show an example with a calculation or diagram.

A: Total internal reflection

Q: Prove or derive the formula for the 9th harmonic in a closed column using the column length formula.

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Q: A spring has a spring stiffness constant k=1.5 N/m, how much must this spring be stretched to store…

A: The potential energy stored in the spring is:

Q: 2. A 1003 kg car rounds a curve on a flat road of radius 51.0 m at a speed of 52.0 km/hr. a. What is…

A: Answer:-  Given  Mass of the car(m) = 1003 kg  Radius of the road (r) = 51.0 m  Acceleration due to…

Q: The k value of a certain spring is 200 N/m. If we put a 75 kg mass on top of it, how far does it…

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Q: Two unequal charges repel each other with a force F. Part A If both charges are tripled in…

A: Write the expression for the electric force between two charges. F=kq1q2d2 Here, k is Coulomb's law…

Q: For the circuit shown below, determine the current and the voltage drop across R4. R, = 300 N, R2 =…

A: Given data:  Three resistors are connected in series  R1 = 300 Ω R2 = 450 Ω and R3 = 350 Ω Battery…

Q: Compute the EQUIVALENT RESISTANCE of the circuit shown below. Then find the voltage drop across each…

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Q: 6. How do noise cancelling headphones work, in principle? Explain briefly.

A: According to the principle of superposition of waves when two waves of the same frequency are out of…

Q: E = î 25e

A: It is required to obtain the expression corresponding to,  E=z^25e-30xcos2π×109t-40x  V/m

Q: Practice 3: The acceleration of a tram car starting from rest increase uniformly from 0.6m/sec2 to…

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Q: The wires of our appliances are insulated with a material mixed with rubber, which has a very high…

A: The resistance of the insulating material is R=ρlA=ρlπro2-ri2=1013 Ω·m2.5 mπ5×10-3 m2-0.5×10-3…

Q: Based on the given value of the initial speed (v = 2.83 m/s), what is the range of the projectile…

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Q: As shown in the figure below, two long parallel wires (1 and 2) carry currents of I, = 2.92 A and I,…

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Q: 7. You drop a rock into a lake, creating circular water waves that propagate outward from the impact…

A: Find a location and time of drop, where you can drop the second rock to completely cancel out the…