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Arte-miy333 [17]
3 years ago
9

If a ball is thrown upward with an initial velocity of 30.0 m/s how much time does it take to reach its maximum height

Physics
1 answer:
Masteriza [31]3 years ago
3 0
Gravity makes an upward-moving object move 9.8 m/s slower every second.

         (30 m/s) / (9.8 m/s²)  =  3.06 seconds  (rounded)
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If two parallel wires carry current in opposite directions, they repel each other whereas if two parallel wires carry current in same direction, they attract each other.

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According to force formula, wire2 will generate more force compared to wire1

force=magnetic flux density × current × length

here,

current is directly proportional to the force, so with increase in current the force will also increase.

force depends on the length and current of the wire.

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2 years ago
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Answer:

3683.67 m

Explanation:

Formula for maximum height of projectile is given by the equation;

h = u²/2g

Where u is initial velocity and g is acceleration due to gravity

We are given u = 190 m/s

Thus;

h = 190²/9.8

h = 36100/9.8

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6 0
3 years ago
A truck travels due east for a distance of 1.9 km, turns around and goes due west for 8.7 km, and finally turns around again and
Hatshy [7]

Answer:

a) Total distance travelled = 1.9km + 8.7km + 3.0km = 13.6km

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Explanation:

a) Total distance travelled is a scalar quantity it is not affected by the direction it's only concerned with the magnitude.

Total distance travelled = 1.9km + 8.7km + 3.0km = 13.6km

b) Total displacement is a vector quantity it takes into consideration both magnitude and direction.

Taking west as positive and east as negative.

Total displacement = -1.9km + 8.7km-3.0km = +3.8km

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Answer:Yes

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2 years ago
Differences between Celsius and Fahrenheit Scales​
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7 0
2 years ago
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