please help with these 4 questions

Q: Question: A carpet is to be installed in a room whose length is measured to be 12.71m and whose…

A: Length of the room is L=12.71 m               Width of the room is W=3.47 m…

Q: 2. The density of cars (in cars per mile) down a 20 mile stretch of the Pennsylvania Turnpike is…

A: Given density of cars (in miles)  And length L=20miles Let's take a small element of length dx at…

Q: 1. Why are several readings taken for each physical quantity? 2. A single reading taken with a meter…

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Q: How much heat in Joules is required to raise the temperature of 0.52kg of water from 17C to 62C ?…

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Q: n (h) = nl0)e - (6.676 » 1023)(9.8) (8) -25 = (2.445×10°5)e (1.31 - 10*)( se0) (2.45- 105) e 2.127…

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Q: How many significant figures are proper in the results of the following calculation: 18.72 3

A: We have to identity number of significant figures in  18.72 .

Q: There are about 3 million deaths per year in US. Of these, 660,283 are heart disease-related.…

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Q: May I request the handwritten copy of this? I dont get how it was calculated.

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Q: (x²) The answer must contain only positive exponents. Simplify the following equation,

A: Given (x2)3x4

Q: What is the length of the hypotenuse? a=12 b=9 and c=?

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Q: Question in image.

A: a) The amount of natural gas is,

Q: Ql Provide the value(s) for n (using the last three digits of your student number( Number=722)) in…

A: As per the guidelines, I will attempt the first three subparts only. As asked the value of n has to…

Q: The figure shows a cycle undergone by 1.50 mol of an ideal monatomic gas. For 1 to 2, what are (a)…

A: Given : n = 1.50 mol T1 = 300 K T2 = 600 K T3 = 455 K

Q: what is this formula? a= 2Δx/t^2

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Q: How much heat in Joules is required to raise the temperature of 0.52kg of water from 17C to 62C The…

A: Mass of water,m=0.52 kg Specific heat of water,s=4186 J/kg⁰c Temperature difference, t= 62C-17C=45 C…

Q: Calculate how much will it cost to light a 25 Watts light bulb for 110 minutes. The cost of…

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Q: One carat is equivalent to a mass of 0.200 g. Use the fact that 1 kg (1000 g) has a weight of 2.205…

A: Given, One carat is equivalent to mass = 0.200 g 1 kg (1000g) has weight of 2.205 lb  So, 2496 carat…

Q: Make the following correct: 65.4 x 105 O 6.54 x 104 O 65.4 x 106 O 65.4 x 104 O 6.54 x 10°

A: Here given a quantity and we have to write it correctly.

Q: Density is given by the equation density-mass/vol (d=m/V). Given that the density of tin is known to…

A: Equation of density: A tin's density,  g/mlThe tin's mass gramsThe volume of water the tin cylinder…

Q: 3. How far apart must two equal point charges of 75.0 x 10-9 C (typical of static electricity) be to…

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Q: Underline the digits that are known with certainty and highlight in color the digits that are…

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Q: This answer is wrong. Please can someone redo this

A: “Since you have posted a question with multiple sub parts, we will provide the solution only to the…

Q: The mass difference between two isotopes is sometimes just a neutron mass. The spectrometer should…

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Q: An airplane flies 390 miles from point A to point 8 with a bearing of 29. Then it flies 290 miles…

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Q: The uniform 22-m pole has a mass of 185 kg and is supported by its smooth ends against the vertical…

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Q: Write the value of the length being measured by   micrometer caliper in the attached file below.…

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Q: figure below. The +- 5.00 µC charges form a dipole. Find the force (magnitude and direction) the-…

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Q: Suppose that the daily profit (in dollars) from the production and sale of x units of a product is…

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Q: Convert the following into standard notation: 4.2 x 10

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Q: If the point A on the cable is moving upwards at a rate of -11.5 m/s, defermine the velocity

A: givenvA=-11.5 m/s

Q: Refer to MEC Student Academic Integrity policy and write the program that will display the right…

A: please see the next step for solution

Q: it View History Bookmarks Profiles Tab Window Help m Set #10: Ch. 11-Ro X WP NWP Assessment Builder…

A: The objective of the question is to find the initial speed of the ball at point P so that it lands…

Q: For an electrical component, the formulas for charge and voltage are given below. A is measured in…

A: The current is defined as the amount of charge flowing through a point per unit time.…

Q: The length of an electronic component is 0.0001265 mm. Write this in scientific notation. 2. The…

A: Answer 1 :- Scientific notation refers to report measurement in power of 10. So, sceintific…

Q: Two charges q1 =Q and q2 =4.4Q are separated by a distance d. The electric force between them is…

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Q: Consider two enclosed cylindrical tanks filled with air. Tank A is 8 ft tall while tank B is 7 ft…

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Q: A ray of light traveling in air strikes a boundary at an angle of 79.7 degrees to the normal. After…

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Q: Two charges q1 =Q and q2 =4.5Q are separated by a distance d. The electric force between them is…

A: Coulomb's Law The force between two charges q1 and q2 is directly proportional to the product of the…

Q: For the remaining questions, you need to use Figure 1.4 to obtain the necessary orders of magnitude…

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Speed of light

The speed at which the light travels in a vacuum is unbiased for both the source and inertial frame of reference of the observer. This was postulated by the physicist, Albert Einstein, by observing the theory of electromagnetism of Maxwell. Also, there was no evidence for the luminiferous aether, that is, the medium for the propagation of light where the electromagnetic field exists.