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Q: Impulse and Momentum Problem Solving 28. A runner with a mass of 75 kg is dashing at a speed of 7.5…

A: Incase of inelastic collision final velocity. V=(m1v1+m2v2)/(m1+m2). Since v2=0 m/s. m1=75kg m2=95kg…

Q: What conditions are necessary for two light waves to form an interference pattern of bright lines…

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Q: (b) Rock B hits the ground at time tB . Derive an equation for the time tA it takes rock A to hit…

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Q: A 45.0-kg sample of ice is already at 0.0° C. How much heat is needed to melt it? For water Lf =…

A: Latent heat of fusion (LF) of ice is the amount of heat required to melt a unit mass of ice from the…

Q: Action-reaction forces are equal in magnitude and are pointing in the same direction. True O False

A: Required:  The magnitude and direction of action-reaction forces

Q: A book is caused to slide with initial velocity 4.59 m/s on a rough floor. If the coefficient of…

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Q: Find the value of work done is 220 J and displacement is 36 m. Find the force applied ?

A: Given data :        Work done    =   W      Displacement    =    d         To find :…

Q: A web page designer creates an animation in which a dot on a computer screen has position ř = [4.0…

A: A web page designer creates an animation in which a dot on a computer screen has position.

Q: A 1.50 kg block sliding on a horizontal frictionless surface is attached to a horizontal spring with…

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Q: A horizontal force of 12 N pushes a 0.50-kg book against a vertical wall. The book is initially at…

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Q: If an electron has an uncertainty in its velocity of 4.10 m/s, what is the uncertainty (in meters)…

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Q: A 22.0 V battery moves 7.6 x 10^3 C of charge. How much energy does the battery deliver?

A: Given EMF of the battery is V=22.0 V The charge is given as q=7.6×103 C   We have to find the energy…

Q: - For the following frame determine x2 at time t=0.35 sec. (k is the total stifee cory). W=120k…

A: Time=0.35sec

Q: 0- 1 4 A В Time (s) Two identical objects, A and B, move along straight, parallel, horizontal…

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Q: Consider vectors U and V with magnitudes |U= 55 and | = 70 units, separated by an angle of 90. Let I…

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Q: The voltage in circuit is 20 V and resistance is 6 ohms, find the current ?

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Q: A meter having 0-1000HA range and 10000 resistance is required to be changed to 0-100 mA meter. The…

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Q: If a bus traveling at 21 m/s is subjected to a steady deceleration of 3 m/s? .How long will it take…

A: Given data:  Initial velocity (Vi) = 21 m/s Acceleration (a) = -3 m/s2 Final velocity (Vf) = 0 m/s,…

Q: Q.2 Put the word (True) or the word (False) of the flowing expressions; True False 1. A partical is…

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Q: An object is 29 cm in front of a convex mirror with a focal length of -21 cm. Use ray tracing to…

A: Focal length=-21cm Object distance=29cm

Q: In the circuit shown, R1 = 3 N, R2 = 2 N, R3 = 5 N, ɛ1 = 4 V, ɛ2 currents I1,12 and I3, and the…

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Q: Starting from rest, a uniform cylindrical wheel (I=M R²) with 1.0 m diameter is rotating under a…

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Q: A circular loop carrying a current of 1.25 A is oriented in a magnetic field of 0.22 T . The loop…

A: Given, Current in the circular loop, I = 1.25 A magnetic field in the region, B = 0.22 T area…

Q: A child, sitting in the backseat of a car travelling at 20 m/s throws a ball at 2 m/s to her brother…

A: The child is sitting in the car travelling with velocity vcar=20 m/s The velocity of the ball is…

Q: 3) A proton is moving with 10^8 m/s speed. Find the De Broglie wavelength associated with the proton…

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Q: hat is the potential energy stored in a 5kg body attached to a spring with a constant 5220N/m…

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Q: 1110. In Fig. P-1109, a ball thrown down the incline strikes it at a distance s 254.5 ft. If the…

A: As given, A distance, s=254.5 ft Maximum height, h=64.4 ft Acceleration due to gravity, g=32.2 fts2…

Q: If the converging lens in a slide projector has a focal length of 116.00 mm and the slide is located…

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Q: How many liters of water can you fill a cube that measured 10cm each side?

A: Given : Length of each side of cube (a) = 10 cm

Q: A book which has a velocity of 3.61 m/s in the horizontal direction slides off the edge of a table…

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Q: If the electric field emitted by a radio tower has an amplitude of 252 V/m, what is the amplitude of…

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Q: An automobile engine takes in 3,000 J of heat and performs 1,400 J of mechanical work in each cycle.…

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Q: Astronomers determine that a particular star in our galaxy is moving toward Earth at a speed of…

A: Write the given values with the suitable variables. v=722 km/s=722×103 m/sλ=682.1 nm Here, v is the…

Q: Given data : Mass 50 kg Density = 2210 kg / m3 Find volume

A: Given data :                     Mass    =   m                   Density   =   D          To find :…

Q: 2. Three identical lamps are connected in series with each other. If the resistance of each lamp is…

A: Equivalent resistance of these series combination is- 3ohm Option 3 is the right ans.

Q: A particle is moving with a velocity that varies with time given by vx(t) = α − βt2, where α = 5.00…

A: a). Velocity varies with time v =  -  t^2 /alpha = 5.00 m/s , /beta = 3.00 m/s^3 Find the particle…

Q: The circuit shown below contains four capacitors and an ideal battery. C2 (12.0 µF) Ci C3 C4 (3.00…

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Q: A crate of mass 40 kg is pushed along a floor with a force of 20 N for a distance of 10 m.Calculate…

A: Given data :              Distance    =    d              Force     =   F      To find :…

Q: The pendulum in the figure consists of a uniform disk with radius r = 14.0 cm and mass 860 g…

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Q: The vibrational frequency of an HF molecule is 8.72 x 1013 Hz and the molecule is 1.589 x 1027 kg.…

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Q: Why does a child in a wagon seem to fall back when you give the wagon a sharp pull forward?

A: To find: The reason of falling child in backward direction.

Q: 3. At the beginning of an investigation, a student determines that the temperature of a beaker of…

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Q: What is the acceleration of a 5000kg body moving on a surface inclined at an angle of 25 .?

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Q: When a 125-kg piece of equipment is hung from a steel wire of diameter 6.00 mm, it stretches the…

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Q: a) Calculate the period of a pendulum (using normal Earth g = 9.81 m/s^2) hanging from a tall…

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Q: Uniform rod AB of weight 120 N and length 4m is connected to a vertical at A using a hinge. A weight…

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Q: Is the number of protons present inside the nucleus is equal to the number of electrons outside the…

A: Introduction :- The given statement is based upon the fact that whether an atom is charged or…

Q: 3. What are the horizontal and vertical components of the following vector displacetnents? a) 2m at…

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Q: 2. A box weighing 200 N is placed on the floor of a truck moving at 72 kph horizontally. Coefficient…

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Q: Give the different (6laws) and give example of each laws.

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Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.