3. Calculate the radius of a 12,000 K white dwarf with a luminosity of 0.0004 solar luminosities. (You can take the Sun's surface temperature to be 5780 K, and note that its radius is 696,000 km.)

Q: 146.88 What is The answer in 2 significant figures?

A: The value 146.88 can be written as,

Q: how about 2 , 3 and 4

A: Dear student,  Since all questions are different as per guidelines we can author only one question.…

Q: ax 15. Rearrange E to solve for (v). v = taxd tad v = а. с. d. v= tax b. v = tar v² = xdt to solve…

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Q: Q: If A- fi+2f) and E - fi+2f]+ 3f k,fis constant, find the angle between these two vectors?

A:

Q: 62) Compute the dot products between the following vectors. The dashed line denotes the positive z…

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Q: Arhinoceros is at the origin of coordinates at time t;=0. For the time interval from ty to ty=14.0…

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Q: Problem 1.56Compute the line integral of v=6+yz²ŷ+ (3y+z) 2 along the triangular path shown in Fig.…

A: Solution: Let us calculate the curl of the given vector v. v=6x^+yz2…

Q: A direction cosine is: O The cosine of the angle between a vector and a particular coordinate axis.…

A: In geometry the direction of the cosine is known as direction of cosine of a vector as the cosines…

Q: 11. Determine the power that is taking by R2 in figure 6-3. (Hint: refer to page 47 of your work…

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Q: What direction does the vector b = -5.00i + 5.003 N point in?

A:

Q: V OT OP S

A:

Q: if A=9,8 â+7,3 ây+2 âz and B=9 â +7,9 ây +7,2 â . if A x B=K â+Lây + Mây, then L=? Yanıt:

A:

Q: A proton (q = 1.60 x 10-1º C, m= 1.67 x 10-2" kg) move in a uniform magnetic field B = 0.500 Tî . At…

A: Given information: The magnetic field (B) = 0.500 T i The electric field (E) = -3.00 ×104 i V/m The…

Q: You are given the equation(s) used to solve a problem. Write a realistic problem for which this is…

A: We have to set up a problem that will provide a solution given in the question. By identifying the…

Q: consideration the appropriate number of Carry out the following calculation taking into figures:3.91…

A: Significant figures are the number of digits which contributes to the degree of accuracy. During…

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: How many significant digits are in the exact number 155?

A: Given: The number is 155.

Q: A man weighs 176 lb. Determine the weight in newtons. (1 kg = 2.2 lb)

A: Given Mass of man m = 176 lb To find  Weight of man in Newtons

Q: Which of the following plots produce a line with slope equal to 6.626 x 10 34 J s? Select all that…

A:

Q: Determine the number of significant figures in the following numbers. a. 6.12 b. 4.009

A: Given data:  Two numbers 6.12 and 4.009 Required: The number of significant figures

Q: Fill in the missing number. 123 1 2 ?

A: We have to find the missing number in the following series.  1 2 3  1 2 ?

Q: Vecrors of length 10 and 15 have a Cross product of 150 if i add those vectors, what is the length…

A: The dot product of the two vectors is,

Q: Determine where the resultant acts measured from A. A. 3.27 ft B. 4.84 ft C. 5.03 ft D. None of…

A: Given :-  A beam is given with a varying load from 150 lb/ft to 200 lb/ft , and a point load of 500…

Q: 1. A FORCE vector has a magnitude of 100N directed at an angle of 30 degrees above the X-axis.…

A:

Q: The result of dot product of two vectors is: O a. a vector quantity Ob.a scalar quantity O c. dot…

A: The dot product of 2 vectors is the component of one vector along the other vector.

Q: Considering the usual unit vectors: i j and k Find the dot product given by C=A'B, for the following…

A:

Q: 5. If a marathon runner averages 6.5 mi/h, how long does it take him or her to run a 26.22 mi…

A:

Q: 1. Write a vector equation for A for each arrangement of vectors. For example, if adding B and Č…

A: Given:-

Q: eif A-2itj-k B=i+2j+ 5k calculate A.B

A:

Q: 17. How many significant digits in 1.1372 x 101° m³ ? *

A: The all non zero digits in a numbers are significant.

Q: 3. A rod of mass M and length L can slide without friction on two parallel rails as shown in the…

A: Required : The current in the system.

Q: 7A is how many fA?

A: Given:  7 A

Q: What mass in kg of rain falls on the lawn in 6 h and 2 min, if each raindrop weighed 13.0 ng and on…

A:

Q: . A vector has an x- component of - 25.0 units and a y - component of 40.0 units. Find the magnitude…

A:

Q: Ques tion No.03 Evaluate the sunface integnl I=faids. uhere a = xi and s Hemis phere fiqure is…

A: The surface is given byx2+y2+z2=a2a normal vector to this surface, can be evaluated by taking its…

Q: What is eqavilent to 8.0(1m=100)

A: We have, 1 m = 100 cm

Q: Part C Enter the expression -20 + 6D in the answer box using the notation just described. Express…

A:

Q: 45 mi/h converted to km/h 75 mi/h converted to km/h

A: Given : Speed = 45 mihrTo convert : Speed from mihr to kmhr

Q: KE = (0.5) x 70 kg x (6.95 x 6.95)

A: We know that kinetic energy is given by  KE=1/2mv2

Q: 3 300M 300N 50 50° Find: B+ C F=?,

A: Please see the answer in next step

Q: f. Convert 3.056 yd² into m². N

A: The objective of the question is to convert an area measured in square yards into square meters.

Q: A force 4 N making angle 45 with x axis. The y component is?

A: Answer Given  Force  F = 4 N Angle θ = 45º with x axis we have to find y component.