3 years ago

A girl runs once around a circular track with a radius of 100m at speed of 10m/s.

Physics

1 answer:

goblinko [34]3 years ago

5 0

Answer:

0 m

Explanation:

Displacement is the shortest distance from one ppont to another. Here, the girl returns to the same spot after running. Hence, displacement is 0 m.

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A car travels 1008km in 14 hours. What is the average speed of the car?

Montano1993 [528]

Answer:

72 km/hr. ...jshdhdhddjidididdiididudd

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3 years ago

If you were to mix 3 liters of 20 degrees celsius water with 4 liters of 30 degrees water at 7 liters of water what temperature

Debora [2.8K]

Lets say final temperature is @ celsius
3c(@-20)= 4c([email protected])
[email protected]=180
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4 years ago

An Earth satellite is orbiting at a distance from the Earth's surface equal to one Earth radius (4 000 miles). At this location,

Taya2010 [7]

Answer:0.25 times

Explanation:

Given

Distance of satellite from earth surface=Radius of earth

Force on the satellite is F=mg'

where g'=acceleration due to gravity at that point

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Gravitational Force is given by

$F=\frac{GM_1M_2}{r^2}$

Force $F=mg'=\frac{GMm}{4R^2}-----1$

Force on earth surface $F=mg=\frac{GMm}{R^2}------2$

Divide 1 and 2 we get

$\frac{g'}{g}=\frac{R^2}{4R^2}$

$g'=\frac{g}{4}$

7 0

3 years ago

Compare and contrast speed and velocity.

vlabodo [156]

Speed is the time rate of an object moving from one place to another, while velocity is the rate and direction of the object's movement. They are very similar but they don't mean the same thing.

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3 years ago

Could you pick up a nail using the curved part of the horseshoe magnet farthest from the poles?

nikitadnepr [17]

Yes

Explanation:

One can pick up a nail using the curved part of the horseshoe magnet farthest from the poles.

A horse shoe magnet has magnetic fields all around it.

In the presence of magnetic force fields, any magnetic object will be attracted to it.
This is the case with any magnet.
A magnet is any object with magnetic fields all around it.
This field causes attraction to any magnetic objects especially metals.

learn more:

Electromagnet brainly.com/question/2191993

#learnwithBrainly

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3 years ago