Answer:
the canon would be blasted .4/6 miles bc it s half of 9.8 which shows its signifigant expretion on the decimal point weather its a posative or negative
Explanation:
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Answer:
-6.34 degrees.
Explanation:
Because this is a collision we can use the formula of linear momentum conservation.
The pin has an angle so it has two components of velocity, so:
applying the first formula:
The angle is given by:
the angle is -6.34 degrees.
Answer:
A semiconductor acts like an ideal insulator at absolute zero temperature that is at zero kelvin. It is because the free electrons in the valence band of semiconductors will not carry enough thermal energy to overcome the forbidden energy gap at absolute zero.
F = 2820.1 N
Explanation:
Let the (+)x-axis be up along the slope. The component of the weight of the crate along the slope is -mgsin15° (pointing down the slope). The force that keeps the crate from sliding is F. Therefore, we can write Newton's 2nd law along the x-axis as
Fnet = ma = 0 (a = 0 no sliding)
= F - mgsin15°
= 0
or
F = mgsin15°
= (120 kg)(9.8 m/s^2)sin15°
= 2820.1 N
