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Dafna11 [192]
1 year ago
6

The blackbody curve for a star named Zeta is shown below. What is the peak wavelength for this star?

Physics
1 answer:
g100num [7]1 year ago
4 0

We are asked for the x coordinate of vertex

Here vertex is present somehow at 850-870nm

The most applicible answer should be 860nm

Option C is correct

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A 70-kg boy is surfing and catches a wave which gives him an initial speed of 1.6 m/s. He then drops through a height of 1.60 m,
Tems11 [23]

Answer:

3.6 KJ

Explanation: Given that a 70-kg boy is surfing and catches a wave which gives him an initial speed of 1.6 m/s. He then drops through a height of 1.60 m, and ends with a speed of 8.5 m/s. How much nonconservative work (in kJ) was done on the boy

The workdone = the energy.

There are two different energies in the scenario - the potential energy (P.E ) and the kinetic energy ( K.E )

P.E = mgh

P.E = 70 × 9.8 × 1.6

P.E = 1097.6 J

P.E = 1.098 KJ

K.E = 1/2mv^2

K.E = 1/2 × 70 × 8.5^2

K.E = 2528.75 J

K.E = 2.529 KJ

The non conservative workdone = K.E + P.E

Work done = 1.098 + 2.529

Work done = 3.63 KJ

Therefore, the non conservative workdone is 3.6 KJ approximately

5 0
2 years ago
What happens as water cools
Ksivusya [100]

Answer:

it decreases in size

Explanation:

The reason why this happens is simply just condensation. unlike when water is boiling, that is evaporating

5 0
3 years ago
Read 2 more answers
The average NASCAR race car weighs 3400 lb. At a recent Nascar race the cars went flying around the banked curves at a raceway.
Gala2k [10]
Idk to be honest you would have to mutiply
4 0
3 years ago
How is energy can be changed from one state to another?​
snow_lady [41]

Answer:

Explanation:

Heat is probably the easiest energy you can use to change your physical state. The atoms in a liquid have more energy than the atoms in a solid. There is a special temperature for every substance called the melting point.They are changes in bonding energy between the molecules. If heat is coming into a substance during a phase change, then this energy is used to break the bonds between the molecules of the substance. EXAMPLE: Solid ice melting into liquid

5 0
3 years ago
Help a nga out with his physic hw
aleksandr82 [10.1K]
Rarefactions are where you see the wave further apart. Where it's closer together, it's called a compression.
7 0
3 years ago
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