What property of an atom determines which type of element it is? O Number of Proton plus Neutrons O Number of Neutrons O Number of Protons O Number of Electrons

Q: Is a physical vae, or mechanical vibration, or simply a series of pressure variations in an elastic ...

A: 1. the changing of sound energy to heat energy is called (B) Absorption.  

Q: As water is traveling from a water tower to someone's home, the pipes it travels in frequently chang...

A: Given data: speed of water in first pipe v1 = 7 m/s diameter of first pipe d1 = 0.5 m Increase in di...

Q: 1. Yves is trying to measure the pressure acting on a square platform. He has placed a mass of 30 kg...

A: Mass (m) = 30 kg Side of square (l) = 20 cm   

Q: Alice and Bob had car trouble. Their car broke down and Bob could not restart it. Alice got out to p...

A: The third law of motion of Newton says that for every action there is an equal and opposite reaction...

Q: 3. Refer to the figure below. What is the magnitude and direction of electric field at point Y from ...

A: Given: q1=q2=q3=q4=100μC=100×10-6 C Diagonal of square =2×side0.32 cm r1=r2=r3=r4=12×diagonal=12×0.3...

Q: A 75-Kg girl leaps from cart A with horizontal velocity of 3 m/s measured relative to cart A. Carts ...

A: mass of girl (M) = 75 kg mass of each cart (m) = 50 kg Initial velocity of each cart = 0 msInitial v...

Q: A water hose is used to fill a rectangular tank of width H and height twice as its width. The hose j...

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Q: Humans should avoid prolonged exposure to electric fields greater than 614 N/C. At a point where E =...

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Q: A car travels along a straight path begins to accelerate at a = (6t^2 – 4t) ft/s^2. At t = 0s, its v...

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Q: Which rules of ray tracing apply to diverging lenses? A ray that passes through the center of the le...

A: A diverging lens is a lens that diverges rays of light that are traveling parallel to its principal ...

Q: Suppose you have a 9.00 V battery, a 3.2uF capacitor, and a 7.45 uF capacitor. a) Find the total ...

A: Voltage of the battery (V) = 9 volts C1 = 3.2 μF C2 = 7.45 μF   

Q: 3. Four spheres, labeled 1, 2, 3, and 4, are arranged as shown in the figure. The spheres interact w...

A: As per guidelines we are suppose to do only three subpart from multipart questions and the above que...

Q: on the bowl is half of a pair of forces that are related by Newton's Third Law. We call a pair of fo...

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Q: A camera has a lens diameter of 0.0444 m. What wavelength of light IN NANOMETERS must it use to reso...

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Q: Boyle's Law states that for a certain gas in a container we have P· V = 370 where P %3D represents t...

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Q: Problem: A square with a 5 cm side has a charge q1 = -10 micro C at its upper-right corner and a ch...

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Q: (II) The force on a particle, acting along the x axis, varies as shown in Fig. 7–24. Determine the w...

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Q: Consider a new absolute zero on the Celsius temperature scale being –255.37 C What will be the absol...

A: Given: The reading of the temperature on the Celsius scale is -255.37oC.  

Q: Question 3 refers to a horizontal massless rope attached to a 23.0 kg box on a horizontal surface as...

A: Given data:  A box on a horizontal surface  Mass (m) = 23.0 kg Coefficient of static friction (μs) =...

Q: Rod- Pithball- rod pithball Rod- Pithball- rod pithball 10.

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Q: You have an equilateral triangle and you happen to place three charges 15 C, -65 C, and 47 C on each...

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Q: 2. How much work is required to accelerate an truck with a mass of 2000-kg from initial velocity of ...

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Q: You are sick, and your temperature is 312.0 kelvins. Convert this temperture to the fahrenheit scale...

A: Basic formula for converting Kelvin into Celsius scale is :  K − 273.15 = °C       ..... (1) Now , C...

Q: How many electrons ? must be transferred from an object to produce a charge of 2.10 C?

A: Given data:   Charge (Q) = 2.10 C Required: Number of electrons transferred from the object 

Q: Where the speed of a fluid increases, its pressure will O stay the same O increase O depend on what ...

A: When the speed of a fluid increases, its pressure will

Q: The gas law for a fixed mass mm of an ideal gas at absolute temperature T, pressure P, and volume V ...

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Q: There are very large number of charged particles in most objects. Why don't most objects exhibit sta...

A: As we all know maters are made of atoms. An atom consist of nucleus where proton and neutron coexist...

Q: 3. A block weighing 200 N rests on a plane inclined upward to the right at a slope of 4 vertical to ...

A: Given that:- Weight of block rest on inclined=200N Weight of block hanging=100N

Q: 6. A potential difference of 9 V is maintained across a conductor in a circuit. If the conductor has...

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Q: Ball x of mass 1.0 kg and ball Y of mass 0.5 kg travel toward each other on a horizontal surface. Bo...

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Q: C1 A,

A: Given, P = 334 NQ = 405 N∠A = 30°∠B = 18°∠C = 51°∠D = 20°

Q: A motorcyclist travels along a straight road. His velocity is shown in the v-t graph. A) Construct t...

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Q: Which statement about wavelength and energy of light is correct? O Wavelength of light is inversely ...

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Q: A satellite travels around Earth in uniform circular motion, at a height of 35,800 km above Earth's ...

A: Gravitational force between two masses is given by,        F = GMmr2  Here,         G is the gravita...

Q: Does not change when fluid cannot be compressed. O density mass flow O volume

A: Given  When the fluid is incompressible, the factor which doesn't change is......

Q: A vehicle of mass 400 kg moves along a horizontal straight road. At every instant t, the resultant f...

A: According to Newton second law  F = ma  Acceleration a = F/m

Q: What is the volume of an object that has a density of 500 kg/m3 and a mass of 60 kg? Group of answer...

A: Given data:  Density (ρ) = 500 kg/m3 Mass (m) = 60 kg Required: Volume (V) 

Q: A 2000 -kg car skids to a halt on a wet concrete road. The car leaves skid marks that are 80 m long ...

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Q: blue train leaves Central station travelling east at 15 miles per hour. Four hours later, a yellow t...

A: A blue train leaves Central station travelling east at 15 miles per hour. yellow train leaves Centra...

Q: A particle is moving along the x-axis with an acceleration a = 4x + 4 (m/s). At t= 0 s, the particle...

A: Given that:- Acceleration of particle=a=(4x+4)m/s^2

Q: Cavity +4Q added to surface -Q

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Q: amantha has a height of 1.83 meters measured from the ground surface. She then lifts a rock and thro...

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Q: steel cable with total length 20 m  and mass 120 kg is connected to two poles. The tension in the ca...

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Q: Vt = 120V R6 22 RI 10Ω R4 R2 102 120 R5 R3 ww

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Q: A car travels along a straight path begins to accelerate at a = (6t^2 – 4t) ft/s^2. At t = Os, its v...

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Q: A) Construct the s-t graph B) What is the total distance travelled? (Non-anonymous questionO) (20 Ro...

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Q: A CAR TRAVELS ALONG A STRAIGHT HIGHWAY AT A CON STAMT VELOCITY OF 40M/SEC (nottA) FOR 30 ŞEC" FIHD T...

A: Given  Velocity ,V = 40 m/sec (North)  Time taken ,T = 30 sec   

Q: A 4kg box is pulled to the right by a force of 20N. The friction exerted by the surface on the box i...

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Q: T= Total Tension From the diagram shown in FIG. B, each object has a Base Area of 100cm? and a verti...

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Q: Question 4 refers to a horizontal massless rope attached to a 23.0 kg box on a horizontal surface as...

A: NOTE: According to the guidelines, we can only solve one question per post. Please post other questi...

Rutherford's scattering experiment

Rutherford’s scattering experiment is also known as the gold foil experiment. This experiment disproved the plum pudding model of J.J. Thomson. In a gold foil experiment, high-energy alpha particles are made to strike a thin gold foil. The scattered alpha particles are detected using a detector. This experiment showed that the positive charge of the atom is at the center. Most of the atom’s mass is also confined to a small volume at the center. This region is known as the nucleus of the atom.