3 years ago

How much time does it take the cheetah to travel 500 meters, if its average speed is 70 meters per second?

Physics

1 answer:

Whitepunk [10]3 years ago

6 0

Answer: 7.14

Explanation:

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3. Your friend says your body is made up of more than 99.9999% empty space. What do you think?

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Answer:

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3 years ago

What is the volume of an object that has a density of 65g/cm3 and a mass of 130g.

lora16 [44]

Density ρ is mass m per unit volume v, or

ρ = m / v

Solving for v gives

v = m / ρ

So the given object has a volume of

v = (130 g) / (65 g/cm³) = 2 cm³

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3 years ago

On the weather map, what does the symbol shown below represent?

Evgen [1.6K]

Answer:

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3 years ago

Provide an example of a technological advancement that has had a positive effect on the environment

Dennis_Churaev [7]

Genetically engineering endangered keystone species that are vital to the environment to be more resilient against harmful predators and/or toxins, pathogens, etc.

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3 years ago

Jupiter's moon Io has active volcanoes (in fact, it is the most volcanically active body in the solar system) that eject materia

melisa1 [442]

Answer:

$H_2 = 91.55 km$

Explanation:

Gravity on the surface of planet is given as

$g = \frac{GM}{R^2}$

as we know that

$M = 8.93 \times 10^{22} kg$

$R = 1821 km$

now gravity on the planet is

$g = \frac{(6.67 \times 10^{-11})(8.93 \times 10^{22})}{(1821 \times 10^3)^}$

so we have

$g = 1.8 m/s^2$

now we know that

$H_{max} = \frac{v^2}{2g}$

so we will say

$\frac{H_1}{H_2} = \frac{g_2}{g_1}$

$\frac{500}{H_2} = \frac{9.81}{1.8}$

$H_2 = 91.55 km$

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3 years ago