Element Sodium Potassium Strontium Calcium Magnesium Strontium Mercury Arsenic Color

Q: Physics 1. Derive the expression ε(ω)=1- ωp 2 / ω2 , ωp2 =ne2 /ε0m for the dielectric constant as a…

A: There are 3 different questions. As per the Bartleby policy, we will answer the first question.…

Q: A car drives around a circular track of diameter 83 m at a constant speed of 37.3 m/s. During the…

A: Given : Diameter = 83 m then, radius =83/2 m Constant speed = 37.3 m/s

Q: 49. A 200 g, 20-cm-diameter plastic disk is spun on an axle through its center by an electric motor.…

A: Determine the moment of inertia of the disk.

Q: If a nonhuman civilization were to develop on Saturn's largest moon, Titan, its scientists might…

A: In the given question, a new temperature scale is devised for Titan Methane freezes at -182.60C on…

Q: Which wave can propagate even in vacuum? Electromagnetic wave                  3. mechanical wave…

A: 1.  Answer option (1)  is correct. Explanation-  Since, electromagnetic waves differ from mechanical…

Q: On the Apollo 14 mission to the moon, astronaut Alan Shepard hit a golf ball with a golf club…

A: The ball is projected at an angle of 360 from the horizontal with a speed of 29 m/s under the…

Q: The X ray beam contains a greater proportion of higher energy X rays the further material it…

A: The basic components of the X-ray tube include a cathode, anode, rotor, envelope, tube port, cable…

Q: 6. An exponential function is modeled in the velocity of the Supernatural by Ghost running on the…

A: We have acceleration which is given by the exponential function a=10et. We need to find the…

Q: A person notices a mild shock if the current along a path through the thumb and index finger exceeds…

A: According to Ohm's lawV=I×RWhereV=VoltageI=CurrentR=Resistance

Q: How much electrical energy is required to move a 4.00-microcoulomb charge through a potential…

A:

Q: [9.] A 6.0 kg package in an Amazon sorting room slides 3.0 m down a plane inclined 60 degrees below…

A: In the given question, Mass of the package (m) = 6 kg Distance moved down the plane (d) = 3m Angle…

Q: What is frequency of a wave having a wave length of 613 nm?

A: Write the expression for the frequency. Here, c represents the speed of light and λ represents the…

Q: Given data: Force = 24 N Time 5 s Calculate the Impulse II =

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Q: 21) What is the height of the building to the nearest thousandths? O A. 200 m OC. 0.003 m O D.…

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Q: Find Density of object of mass 43 kg which accupies space of 21 m.

A: Density of a substance is defined as mass per unit volume.

Q: Two boxes are connected to each other by a string as shown in the figure. The 10-N box slides…

A: In the given question, Weight of the block kept on a horizontal surface (w) = 10kg Mass of the block…

Q: In a cheerleading competition, the 65.0 kg cheerleader is tossed vertically upward with a speed of…

A: Force brings about motion and changes in it. This force produce acceleration and hence the changes…

Q: IRI, IR, IRJ, VRI, VR2, VR3 Q1: Unify the values of the currents and potential difference on the…

A: Given :  R1=3KΩR2=3KΩR3=2KΩV1=10VV2=20V

Q: 4. What is the distance of the image if an object is placed at a large distance in front of a…

A:

Q: 2 A small steel ball, dropped from rest, takes 0.50 s to fall through a vertical distance of 1.25 m.…

A:

Q: [10.] A demolition crew uses dynamite to blow an old building apart. Debris from the explosion flies…

A: Write the expression for the maximum distance i.e. range. Here, u is the speed, θ is the angle, and…

Q: Find impulse Force=7.21 N Time=0.05 s

A: Given data : Time=t Force=F   Required : Impulse

Q: Calculate the transmission coefficient for an electron of total energy 2eV incident upon a…

A: Particle in infinite potential box cannot escape the box according to classical theory. The particle…

Q: [3.] Three rocks, each of mass 12.0 kg, are thrown off a cliff with the same speed, 5.00 m/s. One is…

A:

Q: Q2) A disk of radius 0.1 m is oriented with its normal unit vector n at 30° to a uniform electric…

A: Given data :- radius of disk r = 0.1 m angle between normal (outward) unit vector n and the uniform…

Q: Consider these indices of refraction: glass: 1.52, air: 1.0003, water: 1.333. Put these materials in…

A: (1) From the given information, it is understood that the refractive index of the glass is greater…

Q: Calculate the gravitational potential energy of a light that a mass of 2 kg and is 3 m above the…

A:

Q: In 1986, Kristin Otto set a world’s record for the 100-m freestyle. Suppose that this race had been…

A: Given  Spaceship traveling at a speed, V=0.90c  Time interval, t=125.6s Time dilation formula says…

Q: What is the relationship between the radiation intensity and the distance of the source?

A: Intensity obeys inverse square law ie intensity of radiation varies inversely with the square of…

Q: Find the value of impulse Force=0.09 N Time=0.2 s

A: Solution: Given that F = 0.09 N Time = 0.2 s

Q: Compute the combined moment of the two 55-lb forces about (a) point O and (b) point A. The moment is…

A:

Q: A ball has a mass of 18 kg. Suppose it travels at 7 m/s. Find the kinetic energy possessed by it.

A: Introduction :  In this question we are provided with value of velocity and mass . with these data…

Q: Given data: Density = 350 kg/m3 Mass = 24.4 kg Find the volume ?

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Q: On a mild Saturday morning while people are working inside, the furnace keeps the temperature inside…

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Q: Good day, could you help me demonstrate the following? Subject: Relativistic Physics. Thanks in…

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Q: What force would be needed to produce an acceleration of 6 m/s² in a ball of mass 12 kg ?

A: Introduction :  In this question we are provided with value of mass and acceleration . with these…

Q: What force would be needed to produce a ball of mass 12 kg ? an acceleration of 6 m/s² in

A: Given data:  Acceleration (a) = 6 m/s2 Mass (m) = 12 kg Required: Force (F)

Q: Given data: Mass=34 kg Acceleration=2.3 m/s2 Find force

A: Given data : Acceleration=a Mass=m   Required : Force

Q: energy. 3. Which event is explained in the sequence of energy transformation shown in the diagram…

A:

Q: In the figure, a uniform sphere of mass m = 1.83 kg and radius r=0.335 m is held in place by a…

A: Given information: The mass of the sphere (m) = 1.83 kg The radius of the sphere (r) = 0.335 m The…

Q: A box with a mass of 5 kg is moving with acceleration of 0.5 m/s². Find the force applied to this…

A: Given data : Acceleration=a Mass=m   Required : Force

Q: In the figure, the resultant of all forces in x-direction is equal to a 30° zero O ma mg sin 30 mg

A:

Q: It was 20 Q2: Find the values of current and potential difference on the resistance R4 shown in the…

A: Steps to calculate resistance and current through 4 ohms resistance using thevenin's method 1.…

Q: A 2.0 kg spherical balloon has a radius of 7.35 m and is filled with helium. How large a load can it…

A: Apply the equilibrium condition of the force along the vertical direction.

Q: A ball of mass 4.506 kg is thrown upward with a speed of 5.727 m/s. What is the magnitude of the…

A: Write the given values with the suitable variables. m=4.506 kgu=5.727 m/s Here, m is the mass and u…

Q: Test II. Different Forms of Mechanical Energy. Potential energy or Kinetic energy. 21. Chemical 22.…

A: Test II. 21. Chemical = Potential Energy Chemical energy is considered a form of potential energy…

Q: a B) P P P In the following picture the object attached to the meter stick is in equilibrium. In…

A: Torque is a function and distance. If a force F→ is applied at a distance r→ from a point then the…

Q: A 6-kg body moving at a velocity of 8 m/s collides with another 7 kg body of mass moving at a…

A: mass of first body = 6 kg Initial velocity of first body = 8 m/s mass of second body = 7 kg Initial…

Q: Calculate the work done by a 47 N force pushing a pencil 0.26

A: Work done by a force is defined as scalar product of applied force and displacement.        W =…

Q: You need to set up another simple ramp using the board from Part A (i.e., a board of length 1.56 mm…

A: You need to set up another simple ramp using the board from Part A (i.e., a board of length 1.56 mm…

The Bohr model

Students often get confused between Rutherford’s model and Bohr model of an atom. They interpret the postulates of both these models to be the same, which is incorrect. Rutherford’s model differs from Bohr’s model in the following ways: