The longest wavelength of light humans can see is around 750 nm, deep red. If we were to observe a green-colored space probe approaching a stellar black hole of 20 solar masses, how close to the event horizon would it be when it just turned invisible? Green light has a wavelength around 520 nm. Penalty factor 10%

Q: The amplitude of the wave shown is ---.

A: Answer is (d)  2 m, explanation is in next step

Q: The speed 72 km/hour. What is the in-SI system of units?

A: The SI unit of speed is m/s.   Where m = meter,  s = second

Q: Which ones apply

A: In the motion diagram shown in A, the points are equidistant from each other. This means that the…

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A: Let the initial and final velocities of the car be denoted as u1 and v. Use the third kinematic…

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: 8. An object is dropped and hits the ground 6.00 seconds later. From what height was it dropped?…

A: Time taken by an object to hit the ground=6 s Required height of object from which it was dropped.

Q: 17. 1.2 x103÷ 2.5 x 109 = ? A. 4.8 x10-13 B. 4.8 x105 C. 3.0 x 10-13 D. 3.0 x105

A:

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

A:

Q: If we have : A=-3i+5j-k B=i-j-3k Calculate a)the unit vector u in A direction b) magnitude of B c)…

A: Since you have posted a question with a multiple sub parts, we will solve first three sub - parts…

Q: Solve for r. r+P = S 8

A:

Q: In the figure, block 1 has mass m₁ = 450 g, block 2 has mass m₂ = 510 g, and the pulley is on a…

A:

Q: 3 300M 300N 50 50° Find: B+ C F=?,

A: Please see the answer in next step

Q: Incorrect Question 8 0/ 1 pts Side A=43 and Side B=12, Calculate side H. Give your answer to 1…

A: Given: Side 1 (A) = 43 Side 2 (B) = 12

Q: The answer is wrong

A: For spring mass system. The position of the mass as a function of time can be described by the…

Q: A rod has length 2 meters. At a distance x meters from its left end, the density of the rod is given…

A: Given Density of rod δ(x)=2+6x And length of the rod is 2m. Let's take a small element of length dx…

Q: IN the picture

A:

Q: Write a new scenario using different units

A: Magnitude is 15 .Direction is 25º North of East.