Which of the following is an example of "physics work"? Question 13 options: Lifting your backpack off the floor. Walking across the room with your backpack on your shoulders. Standing still with your backpack on your shoulders

Q: A positively charged dielectric has a charge of 2 Coulombs. If [12.5x10]^18 free electrons are added...

A: Data Given ,  Positive charge ( Q ) = 2 C No. Of electrons added ( n ) = 12.5 × 1018 

Q: A car is being tested passes a point with an initial velocity of 48kph and reaches point B, 233 m di...

A: Given: The intial velocity of the car is 48 kph. The distance traveled by the object is 233 m. The t...

Q: Current=5 Ampere Voltage=10 Volt Itage%3D find resistance

A: Data provided:  Current (I) = 5 Ampere  Voltage (V) = 10 Volt Required: Resistance (R) 

Q: A 10.0-kg box is pulled along a horizontal surface by a force of 40.0 N applied at a 30.0° angle wit...

A: Given  Mass of box ,M = 10.0 kg  Force applied,F = 40.0 N  Angle ,= 30° with vertical  Kinetic frict...

Q: fig 5 10tm Me= In Figure 5. the electron on the right side is fixed. and the one on the left side ha...

A: Given Initial separation between the electrons (Ri) = 10-8 m Initial velocity of first electron = 0 ...

Q: The speed and the wavelength of a water wave in deep water are 18.0 cm/s and2.0 cm, respectively. Th...

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Q: What is the wavelength of electromagnetic radiation emitted from a radio station broadcasting at 150...

A: Given: The frequency of the electromagnetic radiation is 1500 kHz.

Q: A car is 12 m from the bottom of a ramp that is 8.0m long at its base and 6.0m high at its tallest. ...

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Q: Determine Kinetic energy

A: Given data : Mass=m Velocity=V   To find : Kinetic energy

Q: You take a three-day hiking. On the first day, you travel 5.0 km heading East. On the second day you...

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Q: . A uniformly charged, straight filament 2.0 m in length has a total positive charge of 3.0 ??. An u...

A: GivenLength of straight filament L=2.0 mTotal Positive charge (q)=3.0 μCLength of uncharged cardboar...

Q: A 1000-kg car is slowly picking up speed as it goes around a horizontal unbanked curve whose radius ...

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Q: Four charges form an isosceles trapezoid: Q1 = +2C is located at vertex X; Q2 = -3C is located at ve...

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Q: Three equal positive charges of 10 statcoulomb each are located at the vertices of an equilateral tr...

A: Given, Three equal charges are located at the vertices of an equilateral triangle,  q1=q2=q3 = 10 st...

Q: Given data : Voltage=D14 Volt Resistance =2 Ohms Find current

A: Given data : Voltage=V Resistance=R   To find : Current

Q: Direction: Apply rotational kinematics to solve the problem below. Show your complete solution. Writ...

A: Flywheel we have to find the angular velocity, angular displacement  using rotational kinematics

Q: In a women's 200m race, accelerating uniformly, Jane takes 2.50s and Irma 3.00s to attain their maxi...

A: time taken by Jane to reach maximum speed, t = 2.50 stime taken by Irma to reach maximum speed, t = ...

Q: Two people are standing 1.58 m apart. A spy satellite is 1.29×106 m above them. What must the diamet...

A: Given value--- distance between two people = .58 m. distance people to satellite = 1.29 × 106 m. wa...

Q: fire man 50 m away from the burning building direct a stream of water from the ground level fire hos...

A: Motion of projectile can be divided into x component and y component. 

Q: 47. Calculate the kinetic energies of (a) a 2000.0-kg automobile moving at 100.0 km/h; (b) an 80.-kg...

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Q: 35. Walking up an inoperative escalator takes ninety seconds. The trip takes forty-five seconds when...

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Q: For a charge moving through a magnetic field to experience the maximum (magnetic) force possible, it...

A: For a charge moving in the magnetic field the force is given by,                  FB = qvBsinθ  

Q: Referring to the figure shown, water contained in a piston–cylinder assembly, initially at 100 kPa a...

A: initially at 100 kPa and 25°C. temperature T 320°C. We have to final pressure. Answer is P3 = 13.3b...

Q: The resistance of a platinum wire  at 30℃ is 15 Ω. Find its resistance at 45℃. Note that ? = 0.0039/...

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Q: An object of mass  m = 0.380 kg  is suspended from the ceiling of an accelerating truck as in the fi...

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Q: Find the spring constant for a stretched bungie cord if it was stretched 0.45m and its elastic poten...

A: Data Given , Elastic potential ( U ) = 4000 J Extension ( ∆x ) = 0.45 m 

Q: A chunk of ice (T = -20°C) is added to a thermally insulated container of cold water (T = 0°C). What...

A: Temperature of the ice = -20'C temperature of the water = 0'C Container is thermally insulated

Q: object moving in a circular trajectory experiences both centripetal and tangential accelerations. Ca...

A: Given: An object moving in a circular trajectory experiences both centripetal and tangential acceler...

Q: determine the resultant of the following 8.0 N at 40°, 9.0 N at 120°, and 12.0 N at 200° all angles ...

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Q: Light travels from crown glass into air. (Refer to Table 1 for the indexes of refraction.) The angle...

A: Given: Angle of refraction r=60° Refractive index of crown glass μ1=1.523 Refractive index of air μ2...

Q: One gear wheel turns another, the teeth being on the rims. The wheels have 10-cm and 30-cm radii, an...

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Q: Illustrate You have an equilateral triangle, and it happens you place three charges (21) (-59) (53) ...

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Q: 4, In the figure below, if C, = C, = 2C; = 22.6 µF, how much charge C2 C; is stored on each capacito...

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Q: •51 GO Figure 5-47 shows two blocks connected by a cord (of negligible mass) that passes over a fric...

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Q: The graph above shows the position of an object in simple harmonic motion as a function of time. Wha...

A: Given  Graph shows the position of wn object in a simple harmonic motion as the function of time. 

Q: d particle moves along an equipotential line, __________. a. The change in the force acting on the c...

A:  Equipotential line:- The equipotential layer is the surface that is the center point of all points ...

Q: Suppose a 0.70−kg mass on a spring that has been compressed 0.26 m has elastic potential energy of 2...

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Q: hi please solve this question .

A: Given value--- all value given in circuit. We have to find--- R1  V2 Rtotal Vtotal  Itotal   

Q: 0-12 1-VR1+VR2 VR3 1-V/R1+V/R2 V/R3 Eal Zal ll-A If three resistance (RT, R2 & R3) are connected in ...

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Q: ••46 An elevator cab is pulled upward by a cable. The cab and its single occupant have a combined ma...

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Q: An air-filled capacitor consists of two parallel plates, each with an area of 8.99 cm², separated by...

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Q: Comment on the Phase velocity (Vp) of the waves for increased values of Δω and Δk

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Q: block of mass 16.7 kg lies on a horizontal plane. A force F that is inclined 50.7° with the horizont...

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Q: f(x) in 6+ 5- 4- 2- -6 -5 -4 -3 -2 -1 1 3. 4 9. -1+ Use the graph above to answer the following ques...

A: The spring constant k is related to angular frequency ω by, ω=km. Again angular frequency is written...

Q: Four charges were arranged in space such that they form a rectangular configuration. The magnitude o...

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Q: A vector has an x-component of +5 m and a y-component of -3 m. What angle does it make with the y-ax...

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Q: A child is holding a string with a ball tied at the end. The child spins around in a circle causing ...

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Q: (2 mg/L?) ³ (4 mg³) ³ (3 mgº) (2 mg°) (1.3 /L)

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Q: What is the coefficient of friction for a 30 kg block decending a 55 degrees inclined at a constant ...

A: Given: Mass of block =30 kg Angle of incline = 55ο  

Q: Part A An electron (mass m = 9.11 x 10-31 kg) is accelerated from the rest in the uniform field E (E...

A: Initial velocity (u)=0 Let the Final velocity be (v) Electric field (E)= 1.45× 10⁴ N/C Mass of the e...

Static and Kinetic Friction

Kinetic friction comes into existence when there are moving surfaces means in other words we can say that the force which comes into existing between moving surfaces is known as kinetic friction.