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pogonyaev
3 years ago
13

PLEASE HELP!!! URGENT MATTERS!!!!

Physics
1 answer:
fredd [130]3 years ago
5 0
DNA polymerases check the DNA when they are replicating the strands!
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The principal quantum number is given the symbol and has positive, whole-number values starting from?
deff fn [24]

Answer:

Principal quantum numbers are denoted by the symbol 'n'. They designate the principal electron shell of the atom. The positive whole number values starting from 1,2,3 and so on..

Explanation:

All orbitals that have the same value of n are said to be in the same shell (level). For a hydrogen atom with n=1, the electron is in its ground state; if the electron is in the n=2 orbital, it is in an excited state. The total number of orbitals for a given n value is n2.

6 0
1 year ago
Benny wants to estimate the mean lifetime of Energizer batteries, with a confidence level of 97%, and with a margin of error not
VikaD [51]

Answer:

143 batteries does Benny need to sample

Explanation:

Given data

confidence level = 97%

error  = ±10 hours

standard deviation SD = 55 hours

to find out

how many batteries does Benny need to sample

solution

confidence level is 97%

so a will be 1 - 0.97 = 0.03

the value of Z will be for a 0.03 is 2.17 from standard table

so now we calculate no of sample i.e

no of sample  = (Z× SD/ error)²

no of sample = (2.16 × 55 / 10)²

no of sample = 142.44

so  143 batteries does Benny need to sample

7 0
2 years ago
Suppose that a car skids 15 meters if it is moving at 50 kilometers per hour Acceleration-Velocity-Position when the brakes are
julia-pushkina [17]

Explanation:

Below is an attachment containing the solution.

4 0
2 years ago
What tempature does stone turn to lava?
rosijanka [135]
I would say 1000c as my answer
5 0
3 years ago
An engine manufacturer makes the claim that the engine they have developed will, on each cycle take 100 J of heat out of boiling
Flura [38]

Answer:

Our answer is D

Explanation:

Efficiency = Work Done/Heat Input = 80/80 = 1

So Option D....The efficiency of this engine is greater than the ideal Carnot cycle efficiency

6 0
3 years ago
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