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Sidana [21]
2 years ago
14

How long will it take to travel 2000 Km at 500 Km a.100,000 hr b.2500 Km c.4 hr

Physics
1 answer:
IRISSAK [1]2 years ago
5 0

Answer:

the question seems incomplete but the most reasonable answer is 4 times

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A net force of 25N causes an object to accelerate at 4m/s^2. what is the mass of the object?
Doss [256]

Answer:

6.25 kg

Explanation:

Fnet=ma

m=Fnet/a

m=25/4

m=6.25kg

3 0
3 years ago
Which change will always result in an increase in the gravitational force between 2 objects
Nat2105 [25]
<span>Reducing the distance between them. In theory, also increasing the mass; but you can't really change the mass of an object. However, you can compare the forces if you replace an object by a different object, which has a different mass.
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i hope this will work..
4 0
3 years ago
Read 2 more answers
You are working on an experiment involving a very strong permanent magnet, and your data suggests that your magnet's field sudde
kompoz [17]

<u>Question:</u>

You are working on an experiment involving a very strong permanent magnet, and your data suggests that your magnet's field suddenly decreased during some interval in time. Such a decrease could have been caused by the magnet

A. Having overheated substantially

B. Being hit hard

C. Both A and B

D. Being grounded out

<h3><u>Answer:</u></h3>

A decrease in magnetic field of the permanent magnet have been caused by the magnet having overheated substantially or sharp impacts by being hit hard.

Option c

<h3><u>Explanation: </u></h3>

Permanent magnets are ferromagnetic materials with its magnetic domains aligned and grouped together in the same direction. These atomic domains maintain their directionality and hence a permanent magnet provides persistently strong magnetic fields without quick weakening. Some factors may lead to demagnetization or else a consistent reduction in magnetic strength.

Overheating a magnetic material realigns the magnetic domain regions and affects its directionality. When it reaches to a temperature defined as Curie temperature, varying with each material; the substance is no more a magnet due to complete randomness in the domain structure. As the temperature decreases and approaches the room temperature, magnetic field appears but is less in strength. Sudden impacts due to hitting may lead to random realignment of magnetic domains and thus decrease its magnetic strength.

7 0
3 years ago
Thirty-five percent of natural sunlight is made up of
Elden [556K]

Answer: Visible light makes up 35% of natural light.

5 0
3 years ago
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A motorcycle stops at a red light and then gains a speed of 12 m/s in 15s. What's its acceleration?
erastova [34]

Option a) 0.8 m/s² is the correct answer

the acceleration of the motorcycle is 0.8 m/s²

Given the data in the question;

Since the motorcycle stopped then, initial speed u = 0 m/s

final speed v = 12 m/s

time t = 15 s

acceleration = ?

To get our acceleration, we use the first equation of motion.

This equation states that;

v = u + at

so, we simply substitute in our given values

12 m/s = 0 m/s + ( a * 15s )

12 m/s = ( a * 15 s )

so we find a

a = \frac{12m/s}{15s}

a = 0.8 m/s^2

Therefore, the acceleration of the motorcycle is 0.8 m/s²

Option a) 0.8 m/s² is the correct answer

for more on this topic, visit brainly.com/question/17418101?referrer=searchResults

8 0
2 years ago
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