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SSSSS [86.1K]
3 years ago
10

Fire trucks have the word FIRE written two ways, as seen here, on the front of the truck. Why is that?

Physics
2 answers:
Ksju [112]3 years ago
7 0

probably to show others who are foreigners seeing the fire truck name as that from another country

Mars2501 [29]3 years ago
4 0
The word FIRE is sometimes written in Spanish and English, or English and other languages, so foreigners can know what the word is in their language.
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Instruction Active
nikklg [1K]

If the distance between two objects decrease and the masses of the objects remain the same, then the force of gravity between the two objects

<u>Answer:</u>

increases

Explanation:

The formula of gravitational force is given as:

F=G Mm/r^2

G = gravitational constant

M, m = Masses of two different objects in which the force is acting.

r = distance between both the objects.

As we can see from the formula that the force of gravity is inversely proportional to the square of the distance between both objects.

When the distance between both objects with the same masses decreases the gravitational force between them increases. Hence the correct answer is option B.

Illamends had the exact same answer from a similar question. Credit goes to her

4 0
2 years ago
Read 2 more answers
An object of mass m is dropped from height h above a planet of mass M and radius R. Find an expression for the object’s speed
Oksana_A [137]

Answer:

Explanation:

Given

mass of object is m

Mass of planet is M

radius of planet is R

Total Energy associated with mass m at a height h above planet is Gravitational Potential Energy which is given by

E_1=-\frac{GMm}{R+h}

When it falls on earth with some velocity v

E_2=Kinetic Energy+Potential Energy

=\frac{1}{2}mv^2+\frac{-GMm}{R}

As Energy is conserved therefore

=E_2

\frac{-GMm}{R+h}=\frac{1}{2}mv^2+\frac{-GMm}{R}

\frac{1}{2}mv^2=\frac{GMmh}{R(R+h)}

v=\sqrt{\frac{2GMh}{R(R+h)}}

6 0
4 years ago
True or False - Solar energy comes from wind energy?
vladimir1956 [14]
False. solar comes from the sun while wind energy comes from the wind. hope this helps!
3 0
4 years ago
I have a question regarding friction in rolling without slipping.
Solnce55 [7]

Explanation:

They probably put "rolls without slipping" in there to indicate that there is no loss in friction; or that the friction is constant throughout the movement of the disk. So it's more of a contingency part of the explanation of the problem.

(Remember how earlier on in Physics lessons, we see "ignore friction" written into problems; it just removes the "What about [ ]?" question for anyone who might ask.)

In this case, you can't ignore friction because the disk wouldn't roll without it.

As far as friction producing a torque... I would say that friction is a result of the torque in this case. And because the point of contact is, presumably, the ground, the friction is tangential to the disk. Meaning the friction is linear and has no angular component.

(You could probably argue that by Newton's 3rd Law there should be some opposing torque, but I think that's outside of the scope of this problem.)

Hopefully this helps clear up the misunderstanding for you.

4 0
3 years ago
An alarm clock draws 0.5 A of a current when connected to a 120 volt circuit. Calculate its resistance
Hitman42 [59]

<u>Resistance = (voltage) / (current)</u>

Resistance = (120 V) / (0.5A) = <em>240 ohms</em>


5 0
4 years ago
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