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docker41 [41]
3 years ago
9

A car travels 100 km due East in 2 hours. It then travels 50 km South in 1 hour. What is its average velocity?

Physics
1 answer:
xenn [34]3 years ago
8 0
Avg. Velocity = 100 + 50/2 + 1 = 50 km/h
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a football player initially at rest accelerates uniformly as she runs down the field, travelling 17m (E) in 3.8s. What is her fi
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X - Xo = 0.5(Vo +V)t

Xo cancels because it is 0 (she is at rest) 

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3 years ago
Why is the mechanical advantage of a bottle opener always greater than 1?
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Julie drives 100 mi to Grandmother's house. On the way to Grandmother's, Julie drives half the distance at 44.0mph and half the
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52.47706 mph

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Explanation:

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Average speed on the return trip is 54.5 mph

4 0
3 years ago
After a nucleus with 85 protons undergoes alpha decay, it has<br><br> ? protons.
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Answer:

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After the decay, the proton number reduce

The current proton number after decay is

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After a nucleus with 85 protons undergoes alpha decay, it has  83 protons.

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