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3 years ago

14

Fluffy, a greyhound travels 15 m in 2 s while another greyhound, Tiberius, travels 20 m in 5 s. Construct a distance-time graph

comparing the two dogs.

1 answer:

Marina CMI [18]3 years ago

3 0

Answer:

3

Explanation:

dogs

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two 200 pound lead balls are separated by a distance 1m. both balls have the same positive charge q. what charge will produce an

Anna [14]

Answer:

The charge is $q = 3.14 *10^{-4} \ C$

Explanation:

From the question we are told that

The mass of each ball is $m = 200 \ lb = \frac{200}{2.205} = 90.70 \ kg$

The distance of separation is $d = 1 \ m$

Generally the weight of the each ball is mathematically represented as

$W = m * g$

where g is the acceleration due to gravity with a value $g = 9.8 m/s^2$

substituting values

$W = 90.70 * 9.8$

$W = 889 \ N$

Generally the electrostatic force between this balls is mathematically represented as

$F_e = \frac{k * q_1* q_2 }{d^2}$

given that the the charges are equal we have

$q_1= q_2 = q$

So

$F_e = \frac{k * q^2 }{d^2}$

Now from the question we are told to find the charge when the weight of one ball is equal to the electrostatic force

So we have

$889 = \frac{9*10^9 * q^2}{1^2}$

=> $q = 3.14 *10^{-4} \ C$

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3 years ago

People move into and begin living in an area that previously

IgorLugansk [536]

D) There will be less available for other living things.

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4 years ago

What nuclear reaction is the energy source of a white dwarf?

Lesechka [4]

Answer:

Nuclear Fusion

Explanation:

when a star's core collapses, it has no outer layer of resources to use, so it uses the resources inside of it, nuclear fusion is a nuclear reaction in which atomic nuclei of low atomic number fuse to form a heavier nucleus with the release of energy.

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How far from the lens will the image of Jamie's face form?

vladimir1956 [14]

Approx. 983274984065823796374 meters away

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4 years ago

A vehicle travels from a 30m marker to a 100m marker. What is the change in distance

alexgriva [62]

70 meters is your answer

Note that the beginning is the 30 meter mark, and the ending is the 100 meter mark. Subtract the beginning amount from the end:

100 - 30 = 70

The vehicle traveled 70 meters.

~

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3 years ago