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3 years ago

4. Which of the following is equivalent to 800 cm?

Physics

1 answer:

Anna [14]3 years ago

3 0

Answer:

Explanation:

1 cm =10mm so 800cm is equal to 8000mm.so b is the correct answer

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How each graph represents the information.

Triss [41]

The first one shows that it is going at a constant speed, the second shows them going faster, the last shows them slowing down.

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2 years ago

Think about this hypothetical (not real) situation: Astronaut Dustin and Astronaut Barb are floating in space. The force of grav

Maslowich

The distance between Dustin and the planet is larger than the distance between Barb and the planet

Explanation:

The magnitude of the gravitational force between each astronaut and the planet is given by

$F=G\frac{Mm}{r^2}$

where :

$G=6.67\cdot 10^{-11} m^3 kg^{-1}s^{-2}$ is the gravitational constant

M is the mass of the planet

m is the mass of the astronaut

r is the separation between the astronaut and the planet

In this problem, we have:

The force of gravity between Dustin and the planet is 120,265 N
The force of gravity between Barb and the planet is 354,999 N

We see that the force exerted by the Planet on Barb is much greater than the force exerted by the planet on Dustin. Assuming that the mass of Dustin and Barb is similar, then we can say that the magnitude of the force of gravity depends mainly on the distance:

$F=\frac{1}{r^2}$

And since the force is inversely proportional to the square of the distance, this means that the distance between Dustin and the planet is larger than the distance between Barb and the planet.

Learn more about gravitational force:

brainly.com/question/1724648

brainly.com/question/12785992

#LearnwithBrainly

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3 years ago

Should athletes be benched if their grades are too low, or should they be allowed to play anyway?

sdas [7]

They should be benched.

5 0

2 years ago

Phase, color, and ductility are all examples of what type of property?

Mama L [17]

Physical properties.

7 0

3 years ago

Alex is standing still and throws a football with a speed of 10 m/s to his friend, who is also standing still. The two friends a

Phantasy [73]

The question is incomplete. It comes with a set of answer choices.

These are the answer choices:

Alex observes it as 10 m/s, and his friend observes it as less than 10 m/s.

Alex observes it as less than 10 m/s, and his friend observes it as 10 m/s.

Both Alex and his friend observe it as 10 m/s.

Both Alex and his friend observe it as less than 10 m/s.

Answer: Both Alex and his friend observe it as 10 m/s.

Justification:

1) The speed is relative to the frame of reference.

2) It is said that the both Alex and his friend are standing still.

3) Then, the speed they both see is the same, 10 m/s, respect the Earth (where they are standing still).

Of course, Alex is watching the ball moving away and his friend is seing it approaching, but it is not relevant for the question, as it deals with the speed which is only about magnitude, not direction.

7 0

3 years ago

Read 2 more answers