3 years ago

Which describes matter?

Physics

1 answer:

Ilya [14]3 years ago

5 0

Answer:

it takes up space and has mass

Explanation:

it takes up space and has mass

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The acceleration due to gravity on Jupiter is greater than that on Earth. On Jupiter, a person will weigh .

Lerok [7]

The acceleration due to gravity on Jupiter is 24.79 m/s²,
compared to 9.8 m/s² on Earth ... a ratio of about 2.53 .

So if a person or object were somehow transported to Jupiter,
he/it would weigh

(2.53) times (Earth weight)

there.

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3 years ago

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at a 200 meter swimming competition bill got a personal record of 45 secomda and time was 5 secomds faster then bill at the comp

steposvetlana [31]

Answer:

Average speed of the swimmer is 4.44 m/s

Explanation:

As we know that the speed is the ratio of distance covered over time interval

so here we can say

$v = \frac{d}{t}$

so we know that

$d = 200 m$

time taken to complete the trip is

$t = 45 s$

now we have

$v = \frac{200}{45}$

$v = 4.44 m/s$

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4 years ago

Ethel throws a rock downward, and air resistance is negligible. Compared to a rock that is dropped, the acceleration of the thro

Scorpion4ik [409]

The accelerations will be the same because the acceleration of each rock is caused only by gravity, which accelerates objects the same amount no matter what the velocity is.

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3 years ago

Water can be used to create electricity. this type of energy is called _____. nuclear power hydroelectric power electrolysis cur

ioda

Hydroelectric power. That's just the term for electricity gained by using water, think of a water mill.

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3 years ago

Suppose that aliens from a planet orbiting Betelgeuse have eyes similar to human eyes, except that the diameter of their pupils

slega [8]

Answer:

Answered

Explanation:

The data given in the problem

Diameter of a human pupil=0.007 m=7 mm

Diameter of alien pupil=0.5=500 mm

Here we have to calculate the minimum distance at which the alien can see Betelgeuse i.e. the focal length (or the working distance). For this calculation we assume the eye to be a spherical lens.

The focal length and diameter of the lens are related by the formula $F=\frac{r}{2}$ Where r is radius of curvature i.e. d/2

Therefore for the alien, focal length= $F=\frac{25}{2}=12.5mm=0.0125F=\frac{25}{2}$ =12.5mm=0.0125

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3 years ago