3 years ago

What is a sharp ridge separating two cirques

1 answer:

7 0

Arete is a sharp ridge separating two cirques or glacial vallies found in mountain regions. It is French for fishbone or the backbone of a fish, spine

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3 years ago

A tennis player serves a tennis ball such that it is moving horizontally when it leaves the racquet. When the ball travels a hor

finlep [7]

Answer:

The initial velocity is 38.46 m/s.

Explanation:

The horizontal distance travel by the tennis ball = 13 m

The height at which the tennis ball dropped = 56 cm

Now calculate the initial speed of tennis ball.

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Below is the calculation. Here, first convert centimetre into kilometre. So, height at which ball dropped is 0.56 km.

$v = \sqrt{2 \times 9.8 \times 0.56} = 3.32 m/s \\$

$t = \frac{3.32}{9.8} = 0.338s \\$

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$Ux = \frac{13}{0.338} = 38.46 m/s = Initial velocity.$

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3 years ago

Please help with this and explain it,if you can.

vladimir2022 [97]

Answer:

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GIVING BRAINLIEST FIVE STARS AND HEART!

alina1380 [7]

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