A student repeated the Styrofoam ball experiment.  This time, the student rubbed the plastic rod on the cat's fur, but also rubbed the Stryofoam ball on the fur.  How would the outcome of the investigation change if both objects were rubbed on the cat's fur?

Q: A physics student with mass 51kg slides in the snow (see figure). Find the velocity for each points ...

A: We have 5 points A, B, C, D and  E at heights from the ground h1=100 m, h2=60 m, h3=30 m, h4=60 m an...

Q: R mb Side View An axle passes through a pulley. Each end of the axle has a string that is tied to a ...

A: Since, there is no friction. Therefore, acceleration of pulley a            =   angular acceleration...

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A: Given that                     The refractive index of the glass is (n) = 1.5                     Li...

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Q: 1. A spring oscillates 45 times in 1 minute. Calculate the frequency of the spring. (f) Calculate th...

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Q: M R F Suppose you are hanging out in your childhood tree house, which has a trapdoor with a weight o...

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Q: 12. The volume knob on a radio varies the resistance on a line that goes to 1 the speakers. At a low...

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Q: Use the concept of torque to explain how a 300 N child (Jenny) and a 250 N child (Zach) can balance ...

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Q: A carousel has a radius of 1.70 m and a moment of inertia of 118 kg m2. A girl of mass 42.5 kg is st...

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Q: A ball is thrown at a speed of 9.19 m/s. What is its momentum if it weighs  1.04 kg? (use 9.81 for ...

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Q: YOU MUST ONLY USE ENERGY CONCEPTS TO COMPLETE THE PROBLEMS BELOW. 3. A 55 kg man is standing on a 2...

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Q: 1 message A 240 kg communications satellite orbits around Earth exactly once per day at a radius o...

A: The given satellite in the problem completes its orbit around the earth in a time of 1 day, so the p...

Q: A wire carrying 3.50 A of current passes through a 0.0425 T magnetic field at a 53.0 degree angle. I...

A: Given data:  Current (I) = 3.50 A Current (I) = 0.0425 T Angle (θ) = 53.0° Magnetic force (F) = 0.03...

Q: Between two plates, the electric field is 5.0  103 N/C directed downward. What is the magnitude and ...

A: Electric field is equal to the electric force per unit charge. And the direction of electric field i...

Q: A time plot of the voltages across an inductor (dashed), capacitor (dotted), and resistor (solid) of...

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Q: A stone is thrown up in the air and just barely makes into onto the roof of a garage. When is its ki...

A: Kinetic energy of any object is given by :- KE =  (1/2)mv2 Kinetic energy of stone will be maximum  ...

Q: 스크린샷 2022-03-30 오후 12.01.27 An external force F moves a 2.50-kg box at a constant speed v up a frict...

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Q: A car is moving around a circular track. At the beginning of a time interval it is moving at 100 km/...

A: Change in velocity = final velocity - initial velocity = v̅2 - v̅2 

Q: Problem 8: Consider a 150 turn square loop of wire 19.5 em on a side that carries a 56 A current in ...

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Q: A beam of X-rays from a sulfur source (2 = 53.7 nm) and a y -ray beam from a Cs37 sample (2 = 0.19 n...

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Q: June wants to use a glass rod as an insulator. The rod's diameter is 9 mm and its resistivity at 20°...

A: diameter of rod = 9 mm resistivity = 1×109 ohm-meter Resistance (R) = 9.1×1010 ohm   

Q: A typical jar that has been tightened to a reasonable degree requires 2.0 N⋅mN⋅m to open. f you grab...

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Q: Scuba divers are admonished not to rise faster than their air bubbles when rising to the surface. Th...

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Q: Three coplanar forces act on an object P, as illustrated in the Figure, F1=1 with an angle of 52°, F...

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Q: 20. A coil of circular cross-section having 1000 turns and 4 cm2 face area is placed with its axis p...

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Q: The increase in internal energy of 1kg of water at 100°C when it is converted into steam at the same...

A: Mass of water m=1 kg, temperature T=100oC=373 K, pressure P=1 atm=101325 Pa, latent heat of vaporiza...

Q: 0.04 cm liquid column balances the excess pressure inside a soap bubble of radius 6 mm. Evaluate der...

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Q: The maximum distance between Jupiter and Earth is about 968 million km.  How long will a photon of l...

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Q: A 4.0cm high candle is placed 10.0cm from a concave mirror having a focal length of 16.0 cm. Find th...

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Q: In a tornado or hurricane, a roof may tear away from the house because of a difference in pressure b...

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Q: Find the magnitude of the final velocity of the two balls if the ball with initial velocity -3.67 cm...

A: M1 = m2/2 V1 = -3. 67cm/s V2= 7.53 CM/s In inelastic collision bodies move with common velocity afte...

Q: Mechanics Exam1 äbö 20 Determine the horizontal and vertical components reactions on the beam caused...

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Q: What pressure difference is required between the ends of a 2.0-m-long, 1.0-mm-diameter horizontal tu...

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Q: An organ pipe is open at both ends. It is producing sound at its second harmonic, the frequency of w...

A: We have an open organ pipe which is producing a sound of frequency f=318.1 Hz at its second harmonic...

Q: Qv 검색 스크린샷 2022-03-30 오후 12.0 스크린샷 2022-03-30 오후 12.00141 A 6.00-kg block is sent up a ramp inclined...

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Q: If acceleration due to gravity is 15 m/s? , what will be the potential energy of a body of mass 3 kg...

A: Given data :         Acceleration  due to gravity  =  g                    Height  =  h             ...

Q: The area of the capacitor plates of a capacitor is 2.1x108m2. The capacitor contains a polyvinyl chl...

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Q: Find the speed of light in (a) water and (b) Glycerine (both at 20C)

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Q: me fundamental frequency t2. If the String has a ass 0.000754 Ko of a guitar String is 247 and what ...

A: fundamental frequency = 247 hz mass = 0.000754 kg length = 0.58 m   

Q: TRUE OR FALSE  1. It is the gravitational pull of the earth that keeps us and other bodies    firm...

A: As we know that the earth keeps pulling down the objects constantly with gravitational acceleration ...

Q: A circular coil has moment of inertia 0.8 kg m² around any diameter and is carrying current to produ...

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Q: Question 2 A rock is thrown into a pond. The rock sinks don 8 m to the bottom of the pond. (a) Calcu...

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Q: Inductive charging is used to wirelessly charge electronic devices ranging from toothbrushes to cell...

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Q: Blatanee (meter) Wave #21 e-1080 m/s Wavelength 1.5 1.0 Frequency- 0.5 0.0 Perlod= -0.5

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Q: Definition: Composition of platter which depends on temperature. Example: solid, liquid, gas Term:

A: Ques:

Q: Sernel none storqvelo acf u spred of 280 mis. Af fa lenth is 3.1 cm , ushat» it8 weave wshoct the fr...

A: Given data:  Speed (v) = 280 m/s Wavelength (λ) = 3.1 cm = 0.031 m Required: Frequency (f) 

Q: The figure shows a Young's double slit experimental setup. It is observed that when a thin transpare...

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Q: The current in a circuit is 3.8 A and Valtage is 7V find the value of resiatence

A: Given data :          Current  =  I           Voltage  =  V         To find :             Resistance...

Q: An airplane is flying in a horizontal circle at a speed of 105m/s. The 80kg pilot does not want his ...

A: Given, speed of an airplane, v = 105 ms mass of the pilot, m = 80 kg centripetal acceleration, ac = ...

Q: There particles are located at coordinates (x, y) as follow: m1 = 1.0-kg is at (0,0), m2 = 2.0 kg is...

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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.