An astronomer takes a spectrum of an object and see dark portions of the spectrum superimposed on a bright continuum. What kind of spectrum is this? a) Emission b) Blackbody c) Absorption d) Emission and Blackbody e) Emission and Absorption

Q: Calculate (1.99 x 10³0)/(5.98 x 1024). Express your answer to three significant figures.

A: We have been given two values, let us say that a = 1.99×1030b = 5.98×1024

Q: The last answer is not correct, it says "did you divide or take inverse of your calculation?" So how…

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Q: Consider FIG-DD in the appendix.   Note: For Blocks “A” & “B” & “C”: The mass of “A” is 30 kg.

A:

Q: give a unique example of a scientific statement and explain WHY your statement is scientific.

A: A scientific statement is basically a belief that can be proved wrong and it may or may not contain…

Q: Perform the calculations and determine the absolute and percent relative uncertainty. Express each…

A: (a) The absolute uncertainty can be computed as follows.

Q: How many years older will you be 1 gigaseconds from now? (Assume a 365-day year.)

A: Given -  1 gigasecond To find - How many years older you will be after 1 gigasecond. As we know,…

Q: When you perform the following operations, how many significant figures should your answer have?…

A: Operation to be performed : (4.0005×105) + (8.000×102)

Q: 3. If a boat was going 5 m/s at 10 seconds into the race, and at 20 seconds into the race the boat…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: A new physics unit of distance is created and called the Zarkov. A student informs you 1 Zarkov (1…

A: Rewrite the provided value that has to be created.

Q: Describe about How many correct experiments do we need to disprove a theory?

A: Introduction: A theory is a supposition of an idea which is intended to describe a phenomenon which…

Q: (a) Find the average rate of change of the area of a circle with respect to its radius r as r…

A:

Q: Express the number of seconds per minute sSm, the number of minutes per hour mh, the number of hours…

A: For, 1 minute In 1 minute there is 60 sec 1m=60s1m=1s×601m1s=60 So 1m1s=sm=60 For 1 hour In 1 hour…

Q: = A conical tank of radius R = 16 feet and height of H water at a rate of 6 ft³/min. (a) Express the…

A:

Q: Estimate the number of breaths taken by a human being during an average lifetime. (Hint: Show…

A:

Q: 5) If a cylindrical rod of uranium is 25.00 cm long and has mass 9.874 kg, what is its radius?

A: Uranium is a radioactive, heavy metal oxide and it is mainly used to produce electricity in nuclear…

Q: Help on calculating this and with setps to help understand. Thanks

A: Step 1: Given, the corner of the room is taken as origin So, the coordinate of origin = (0, 0).And a…

Q: What is the uncertainty (in m3) in the volume of a sphere with radus 4.78 ± 0.03 m? (Express your…

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Q: #2. Convert the following quantities to the specified new unit. Note the following conver- sion…

A: Given 10km = 6.2 miles So,     1mile = 10/6.2 km            1 mile = 1.6129 km Now 26.2 miles =…

Q: When nonmetric units we used in the United Kingdom, a unit of mass called the pound-mass (Ibm) was…

A:

Q: What do you think is the effect of significant numbers in the errors of measurement?

A: In this question we have to answer what is the effect of significant numbers in the errors of…

Q: Data Table: Elongation (cm) (Adding) Elongation (cm) (Subtracting) Mass Added (g) Force Added (N) 10…

A:

Q: The online lab manual for this experiment gives the formula for the volume of a sphere: [If your…

A: Bbb…

Q: Solve the inequality, and express the solutions in terms of intervals whenever possible

A: Given: To find the speed with the values as, M=-130v2 +52v, 0<v<70

Q: Perform the following calculation and state the result with the correct number of significant…

A: Significant number rule.  When two numbers are multiplied such that both the numbers have same…

Q: Write down how many significant figures in the following numbers: 1. 78.05 2. 2008 3. 58.00 4.…

A: Given data:  Different numbers are given 78.05,     2008,    58.00,   784000 Required: Number of…

Q: State how many significant figures are proper in the results of the following calculations. (a)…

A: Given Data: (a) (36.84)(265)(46.210)(1.8618)(b). (20.0)2(c). (2.9×10-19)(3712) To Determine: (a).…

Q: What is the sum of 44.06005 s, 0.0598 s, and 1103.4 s? Answer the question with correct number of…

A:

Q: Here's the aluminum (Al) cylinder: 1 4 Here's the lead (Pb) cylinder: 3. 1. What is your estimate…

A: To determine: Length, volume, density and their uncertainties.

Q: If a certain silver wire has a resistance of 6.00 2 at 20.0°C, what resistance will it have at…

A: The resistivity of a material is temperature dependant. This makes the resistance of a material also…

Q: A person measures the velocity of a biker riding in a straight line along a sidewalk using a…

A: Formula used: Area of the square A =side2 Velocity = displacement /time The time taken by the biker…

Q: Perform the following calculation. Supply your answer with the correct numerical value and amount of…

A: Any number raised to zero is just one. Therefore, 100 = 1 So our equation reduces to  1.060×100 ×…

Q: Topic : Numerical integration 3.) mid-ordinate rule

A: Step 1: Step 2: Step 3: Step 4:

Q: Using the formula for the sum ot 11 E, 2i = i=1 E, 2i = 11 i=3 E (2i + 3) = 11

A: Given: ∑i=1112i∑i=3112i∑i=1112i+3

Q: Use your calculator to determine ( √ 6 )3 to three significant figures in two ways. Find √6 to…

A:

Q: how can we convert km/hr to m/s

A: Convert of km/hr to m/s. is shown below: