Answer:
Explanation:
Use the one-dimensional equation:
which says that the final velocity of a falling object is equal to its initial velocity times the acceleration of gravity times the time it takes to fall. We have the final velocity, -14.5 (negative because its direction is down and down is negative), initial velocity is 0 (because it was held still by someone before it was dropped), and acceleration is -9.8 (negative again, because direction is down while acceleration increases). Filling in:
-14.5 = 0 - 9.8t and
-14.5 = -9.8t so
t = 1.5 seconds
<h2>
Option B is the correct answer.</h2>
Explanation:
We need to find number of protons, electrons and neutrons in ⁶²Ni
Mass number is 62.
That is
Number of proton + Number of neutron = 62
We know that number of proton = 28 for nickel
So
28 + Number of neutron = 62
Number of neutron = 62 - 28 = 34
We also know
Number of protons = Number of electrons
Number of electrons = 28
Option B is the correct answer.
When cattle are processed, the most likely use for the animals' skin is in
the production of Leather.
<h3 /><h3>Animals used for Leather production</h3>
The commonly used animals in leather production is however cattle and
they amount for a large percentage of leather present today. They also
involve various techniques such as tanning and crusting to ensure
conversion to leather.
Read more about Leather here brainly.com/question/2494725
Answer:
low-mass star.
Explanation:
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1: a machine makes our work easier
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3: a machine can help us transport from a place to another
