3 years ago

Which of the following hypotheses is written correctly?*

Physics

1 answer:

sweet [91]3 years ago

6 0

Answer:

4 Because Hypothesis sentence always have to be "If" and Then a "then"

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expeople1 [14]

Answer:

Upward direction.

The friction is kinetic friction

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3 years ago

Who was the decline in the anchovy of peru blamed on

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<span> The failure of the anchovy harvest in 1972 was blamed on El Niño.</span>

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3 years ago

Find the potential energy associated with a 61-kg hiker atop New Hampshire's Mount Washington, 1900 m above sea level. Take the

Natali [406]

Answer:

The potential energy of the hiker is $1.13\times 10^6\ J$ .

Explanation:

Given that,

Mass of the hiker, m = 61 kg

Height above sea level, h = 1900 m

We need to find the potential energy associated with a 61-kg hiker atop New Hampshire's Mount Washington. The potential energy is given by :

$E=mgh$

g is the acceleration due to gravity

$E=61\ kg\times 9.8\ m/s^2\times 1900\ m\\\\E=1.13\times 10^6\ J$

So, the potential energy of the hiker is $1.13\times 10^6\ J$ . Hence, this is the required solution.

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3 years ago

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Valentin [98]

It’s very big and very small numbers

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3 years ago

A sensational 130 kg midfielder has 695 J of

antoniya [11.8K]

Answer:

v = 3.27 m/s

Explanation:

KE = 1/2 mv^2

695 J = 1/2 (130kg)(v^2)

695 J / (1/2 x 130kg) = v^2

v^2 = square root of 10.69

v = 3.27 m/s

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3 years ago