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JulsSmile [24]
3 years ago
9

A baseball catcher throws a ball vertically upward and catches it in the same spot as it returns to the mitt. At what point in t

he ball’s path does it experience zero velocity and nonzero acceleration at the same time?
Biology
1 answer:
Georgia [21]3 years ago
6 0
The apex of the throw, which is when the ball reaches the highest part of the thrown before it begins to fall
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About how long does it take Earth to complete one revolution around the Sun?
SSSSS [86.1K]

Answer:

365 days so 1 whole year

Explanation:

i,m correct promise

i'm a genius when it comes to science

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3 years ago
Rocky Mountain juniper (Juniperus scopulorum) and one-seeded juniper (J. monosperma) have overlapping ranges. Pollen grains (whi
jarptica [38.1K]

Answer:

The correct answer is: Yes, this is an example of Reproductive Isolation.

Explanation:

  • Reproductive Isolation can be defined as the mechanism adopted by different species during the course of their evolution, due to which the individuals belonging to different species are incapable of mating with each other and producing viable offspring.
  • The given question is an example of Mechanical, Pre-zygotic Reproductive Isolation.
  • Prezygotic Isolation refers to the mechanism adopted by individuals of different species during the course of evolution such that successful fertilisation of gametes from individuals of different species never occur, hence a viable zygote is never formed.
  • Mechanical Isolation refers to the mechanism adopted by individuals of  different species during the course of evolution such that their reproductive organs or the organs that assist in the process of reproduction are incompatible to each other. Hence, the gametes of each species are unable to come in vicinity of each other.
  • Here, the pollen grain from the flower of one species of juniper is unable to form the pollen tube when its sits on the stigma of the flower of another species of juniper. This is an example of Mechanical Isolation.
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4 years ago
The exited electrons pump uses what ion to create a gradient
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The plant uses this energy to power a protein pump that can pump hydrogen ions back into the lumen of the thylakoid against the concentration gradient in order to ... Without the ATP, the Calvin Cycle will not be able to produce sugar.


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3 years ago
A 60-year-old client tearfully explains to the nurse how her husband downplays her frequent migraines and tells her that she nee
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The correct answer is "ineffective low performance related to migraine headaches".
According to the patient's description, migraine headaches are creating a serious problem regarding her ability to perform all the actions that her role in her family involves. Her role as a grandmother involves taking care of her grandchildren and keeping up her garden as a hobby. These are actions which she can no longer perform due to her headaches. 
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3 years ago
Can star positions be used to determine the future
irinina [24]

Answer:

Since stars basically move freely through space, we can use their proper motions to predict where they will be in the future. A star can also move toward us or away from us, following what is known as radial motion. The combination of radial motion and proper motion determines a star's true motion relative to us.

Hoped I helped

4 0
4 years ago
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