What were the two postulates upon which Einstein based Special Relativity? OA. a constant speed of light, and that simultaneity is not universal B. a variable speed of light, and there is no absolute length by which objects can be measured O C. The laws of physics are the same in all inertial frames of reference, and the speed of light is constant regardless of the inertial reference frame. O D. The laws of physics vary with the frame of reference, and it takes infinite energy to reach the speed of light.

Q: What is the magnitude of the electric field at the point (2.60 i -6.20j+ 2.20 k) m if the electric…

A: Position given = 2.6i^  - 6.2j^ +2.2k^ V (Potential) = 1.5xyz2 E = -(gradient of V)

Q: In a science experiment, a quantity Q(t) was observed at various points in time t. Time is measured…

A: (a) Using the data of the table: For t=0 , Q(t) = 2.920 Q(t) = Ae-bt 2.920 = Ae-b*0A=…

Q: Three vectors are oriented as shown in figure, where A = 2m, B = 4m, C = 3m. Find (a) The R, and R,…

A: We can writen given vectors in x and y form as  Vector A = 0x+ 2y  Vector B = 4 cos45° x + 4 sin…

Q: Find the x-component of this vector. 80.0° B-18.6 m 0 = 170° Bx = [?] m Hint: Bx = B cos(0)

A: The magnitude of vector B = 18.6 m Angle made by the vector B with the +x axis = 170o

Q: A spacecraft is in empty space. It carries on board a gyroscope with a moment of inertia of I, =…

A: Given data: Moment of inertia of spacecraft IS=5.00×105 kg·m2. Moment of inertia of gyroscope…

Q: Problem 1: A horizontal force, F, = 65 N, and a force, F2 = 18.1 N acting at an angle of 0 to the…

A: We have to calculate the acceleration of the block.   Given :- The forces are F1=65 N , F2=18.1 N.…

Q: Miley came in with a wrecking ball A with a mass of 500 kg. It is released from rest from height h…

A: Since you have posted a question with multiple subparts, we will solve first three as per Q&A…

Q: Use the following constants if necessary. Coulomb constant, k = 8.987 × 10º N · m² /C¥acuum…

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Q: Particles q₁ = -66.3 μC, q2 = +108 μC, and 93 = -43.2 μC are in a line. Particles q₁ and q2 are…

A:

Q: Can someone look at the options again. Please select all of the correct answers.

A:

Q: Refractive index of glass with respect to medium is 4/3. If (v. - v₂) = 6.25 x 10' then velocity of…

A: We have to find the velocity of light in a medium Given that,   R.I. of glass w.r.t. medium μgm=43…

Q: 7. Which of the follow a. Silver b. Titanium c. Plastic Bottle d. Wood 8. Which of the follow a.…

A:

Q: An electric field of 170 x10-6 V/m is induced within the loop of long solenoid with cross sectional…

A: Given:-  The induced electric field E = 170 x 10-6 V/m. The cross-sectional area of the solenoid A =…

Q: Q4. Three of the following statements are true, but one is false. Indicate which one is false? (a)…

A: Q4 (c) An isothermal process is one in which the pressure is constant.   Q2 (b) A simple system is…

Q: A 2.8 µF capacitor and a 5.8 µF capacitor are connected in parallel across a 430 V potential…

A: C1=2.8uf C2=5.8uf Voltage applied (V)= 430 v

Q: Which table correctly displays the information provided within the problem below? A train travels…

A:

Q: A parallel-plate capacitor has a capacitance of 660 pF, a plate area of 180 cm2, and a mica…

A: The movement of charge causes the current to flow in the conductor. Each charge has an electric…

Q: another term for position is ___.

A: Position of an object is the place where it is situated. In physics, position is denoted by a number…

Q: An uncharged metal bar of length L is placed a distance d from a point charge -Q as shown in the…

A: By using two properties  of electric  field  1 ) electric  field inside a conductor is always zero…

Q: It seems like a incorrect answer

A:

Q: Two points in a plane have polar coordinates (2.80 m, 30.0°) and (3.50 m, 120.0°). Determine (a) the…

A: Basic concept: The polar coordinates are represented by the symbols r and θ. They indicate the…

Q: Thor is battling the Frost Giants and he uses his hammer, Mjolnir, to zap them with lightning. Thor…

A: From the first glance we see that for substitution of velocity in the formula the units mentioned is…

Q: Light of wavelength 618 nm is incident normally on a diffraction grating. Two adjacent maxima occur…

A: the wavelength of light=618nm Two adjacent maxima occur at sinθ=0.24 & sinθ=0.35

Q: i can't distinguish which are the subscripts or superscripts

A:

Q: A plastic disk of radius R = 46.3 cm is charged on one side with a uniform surface charge density…

A: This question is based on Electrostatic potential topic. The formula for Electrostatic potential due…

Q: A coaxial cable used in a transmission line has an inner radius of 0.14 mm and an outer radius of…

A: Solution

Q: describes the statement. A. The direction of the net force due to the fluid is downward B. The…

A:

Q: Find the direction of this vector. 80.0° B<18.6 m 0 = [?]° Hint: Remember, 0 is the direction of the…

A: Magnitude of the vector 'B' is 18.6m Direction of the vector 'B' is 80 degrees from +y axis.

Q: 4. Two blocks of mass 3.50 kg and 8.00 kg are connected by a massless string that passes over a…

A: The problem is based upon mass pulley system.  The solution will be

Q: car is rolling down the ramp as shown in the figure. The car's mass is m s an angle of 0 = 14…

A:

Q: An LC circuit is built with a 50 mH inductor and an 6.0 pF capacitor. The capacitor voltage has its…

A: Inductance , L = 50 mH = 50 x 10-3 H Capacitance , C = 6 pF = 6 x 10-12 F Maximum Voltage , Vmax =…

Q: A coil is formed by winding 330 turns of insulated 16 gauge copper wire (diameter = 1.0 mm) in a…

A: Number of turns, N= 330 Diameter= 1 mm or 1 x 10-3m radius , r = 17 cm or .17 m resistivity of…

Q: In the diagram, q1 = +6.39 109 C and q2 = +3.22 10-9 C. What is the electric field at point a + or -…

A:

Q: A 1 B ● 2 3 D E The figure above shows four very thin parallel planes of charge with equal…

A:

Q: In the case of half-wave rectifier, what is the correct answer:

A: As per the company policy, only 1st question will be answered here, please post the rest separately.…

Q: A 0.55 cm diameter plastic sphere, used in a static electricity demonstration, has a uniformly…

A: Given: The given values are, The diameter value is, d=0.55 cm. And then the value of the charge is,…

Q: Consider two vectors: A = 31-jand B = -21-4j calculate A + 2B, A- B, magnitude of à + 2B, and…

A: Given Data: Vector A (A→) = 3i^-j^.Vector B (B→) = -2i^-4j^. To Determine: The answer of A→+2B→ and…

Q: Two light bulbs of the same resistance are connected in series. Choose the correct answer. Select…

A:

Q: Says the answers are incorrect

A:

Q: 13. A boy of mass 50 kg is at rest on a uniform plank of mass 40 kg. If AB = 1 m, BC = 3 m and…

A: Given:- The mass of the boy is M = 50 kg  The mass of the plank is m = 40 kg  The length of the…

Q: A 1 B 3. 2 C 3 D 4 E The figure above shows four very thin parallel planes of charge with equal…

A:

Q: (3) The impulse J that an object experiences can be calculated as: j = vAt avg Note that the impulse…

A:

Q: What are (a) the frequency, and (b) the energy (in eV) of a photon of light having a wavelength of…

A: The frequency of a photon of light is given by the equation:frequency (Hz) = c / wavelength (m)where…

Q: R1. C R2 1N and 3. Given that the battery has a potential of 12 V, resistors R1 R2 = 3N, and…

A: Initially when time t=0 then no current flows through the circuit. And at infinity no current flows…

Q: What are the signs of the charges in the configuration shown in the figure? A. Charges 1, 2, and 3…

A: Like charges repel each other and their electric field lines also repel each other . Unlike charges…

Frame of reference

In physics, a frame of reference is a coordinate system used to specify either the position or the orientation or velocity of a body. The origin of the coordinate acts as a reference point for measuring the position or relative motion of a body. The coordinate system can be a cartesian coordinate, cylindrical coordinate, or a polar coordinate.