On average, the actual protein molecule carries percentage of the atomic number 7 by weight unit. Nitrogen molecule
Answer: 0.5 seconds or 2.625 seconds
Explanation:
At t = 0, The ball is 4 ft above the ground.
The height of the football varies with time in the following way:
s(t) = -16 t² + 50 t + 4
we need to find the time in which the height would of the football would be 25 ft:
⇒25 = -16 t² + 50 t + 4
we need to solve the quadratic equation:
⇒ 16 t² - 50 t + 21 = 0
⇒ t = 0.5 s or 2.625 s
Therefore, at t = 0.5 s or 2.625 s, the football would be 25 ft above the ground.
It is malleable
Explanation:
The property that makes metals such as sterling silver the best to create hammered earrings is their malleability.
All metals have a unique and fascinating property of being malleable. They can be carved into any of shape. When hammered they simply draw out and retain their long range ordering of their crystal lattice.
This is made possible by the presence of metallic bonding between the atoms.
- The bulk of the physical properties of metals can be attributed the metallic bonds in them.
- Metals have large sea of electrons in them.
- In forming metallic bonds, there is an attraction between the positive nuclei of all the closely packed atoms in the lattice and the electron cloud jointly formed by all the atoms by loosing their outermost shell electrons.
- Metals like silver have low ionization energy.
- When they are hammered, they spread out the energy from the hammering.
learn more:
Metals brainly.com/question/2474874
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Answer: reliable
Explanation:
Reliable (marketing research) information is collected from questions (measurements) that are free from systematic or statistical error. An absence of systematic error implies that the respondents (i.e., the sampled people) who answer questions actually understand what the questions were asking.
Answer:the answer is B
Explanation: just took the quiz
