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2 years ago

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Calculate the number of vacancies per cubic meter in gold (au) at 900c. the energy for vacancy formation is 0.98 ev/atom. furthe

rmore, the density and atomic weight for au are 18.63 g/cm3 (at 900c) and 196.9 g/mol, respectively.

1 answer:

Sergeeva-Olga [200]2 years ago

8 0

My mom said its f so i think its q

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The force needed to overcome sliding friction is more than the force needed to overcome rolling friction or static or even fluid

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An empty 2,500 kg train car is headed northbound at a velocity of 5 m/s. Ahead of the first car, an empty 1,500 kg car is headed

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Let the mass of 2500 kg car be $m_1$ and it's velocity be $v_1$ and the mass of 1500 kg car be $m_2$ and it's velocity be $v_2$ .

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3 years ago

A robot is exploring charon, the dwarf planet pluto's largest moon. Gravity on charon is 0.278 meters per second [m divided b

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In order to find the efficiency first we will find the Change in Potential energy of the small stone that robot picked up

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2 years ago

I need help this is extremely hard

telo118 [61]

Answer:

For the first one shown, the answer is Directly Proportional, The second one is Inversly Proportional, and the last is fourtl times the original value

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2 years ago

a bullet moving with a velocity of 100m/s pierce a block of wood and moves out with a velocityof 10 m/s.if the thickness of the

erma4kov [3.2K]

The emerging velocity of the bullet is <u>71 m/s.</u>

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3 years ago