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3 years ago

How could you figure out how fast you can run

Physics

2 answers:

SashulF [63]3 years ago

8 0

You could use a RADAR gun wich shows the mph of cars but u could use it on humans

fomenos3 years ago

4 0

By timing yourself :)

or are you talking about mph?

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FinnZ [79.3K]

Answer:

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In physics, a conservation law states that a particular measurable property of an isolated physical system does not change as the system evolves over time. The exact conservation laws include conservation of energy, and conservation of linear momentum, and also conservation of angular momentum, aswell as the conservation of electric charge

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4 years ago

An artillery shell of mass 30 kg has a velocity of 250 m/s vertically upward. The shell explodes into two pieces; immediately af

olga_2 [115]

Answer:

9654.34 m

Explanation:

from conservation of momentum

$\begin{aligned}30 \times 250 &=-10 \times 120+20 \times V \\20 V &=30 \times 250+10 * 120 \\V &=\frac{30 \times 250+10 \times 120}{20}=435 \mathrm{~m} / \mathrm{s}\end{aligned}$

And from Conservation of Energy

$\frac{1}{2} m v^{2}=m g h\\h=\frac{v^{2}}{2 g}\\h=\frac{(435(m/s))^{2}}{2 \times 9.8(m/s^{2} )}\\h=9654.34 (m)$

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2 years ago

What is a likely consequence of continued human population growth

quester [9]

Answer:

Rapid human population growth has a number of consequences. Population grows fastest in the world's poorest countries. High fertility rates have historically had a strong relation with poverty, and high childhood mortality rates

Explanation:

i got it from goo.gle but i hope that helps:)

have a good day bro

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3 years ago

Please help extra points!!!!

Allushta [10]

Answer:

If you increase either mass or velocity, the momentum of the object increases proportionally.

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3 years ago