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4 years ago

The force that resists moving one object against another is _____. friction push energy work

Physics

2 answers:

masha68 [24]4 years ago

8 0

Your answer would be friction.

Novosadov [1.4K]4 years ago

6 0

The answer is A. Friction.

Friction is the resisting force between two objects that move against one another.

Hope this helps! :)

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Which of the following would increase the amount of electricity generated by a wind turbine

kotykmax [81]

Higher wind speeds would increase the amount of electricity generated by a wind turbine.

<h3>What is a power plant?</h3>

A power plant is an industrial structure that generates electricity. The majority of power plants are linked to the electrical grid.

Stronger winds produce greater power because they enable the blades to revolve more quickly. Greater mechanical and electrical power from the generator result from faster spinning.

Hence, higher wind speeds would increase the amount of electricity generated by a wind turbine.

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2 years ago

If the moon moved closer to the earth, how would the gravitational force between them change?.

hichkok12 [17]

If the moon moved closer to the earth, The gravitational force between them will increase.

This can be understood by Newton's law of universal gravitation. This is usually stated as that every particle attracts every other particle in the universe with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.

$F_{gravitation}$ = G $\frac{M_{1} M_{2}}{r^{2} }$

If the moon moved closer to earth, the distance between them will be reduced, and as the force of gravitation is inversely proportional to the distance between the masses, the gravitation force increases.

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2 years ago

If A.B=A.C<br>does this imply that B must be equal to c ? <br>I need answer with example please

Leno4ka [110]

Answer:

Yes

Explanation:

$Consider\ three\ variables\ a,b\ and\ c.\\If,\\ab=ac\\a*b=a*c\\We\ may\ now\ divide\ the\ LHS\ and\ RHS\ by\ a,\\Hence,\\\frac{a*b}{a} =\frac{a*c}{a}\\Hence,\\b=c$

$Ex: \\Consider\ a=5, b=6.\\Hence\ if,\\a*b=a*c\\5*6=5*c\\Hence,\\30=5c\\Hence, c=\frac{30}{5}\\c=6\\As\ b\ also\ equals\ to\ 6,\\b=c$

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3 years ago

The heat energy released or absorbed by a chemical reaction is generally determined by the difference between the energy that

Ket [755]

Answer:

Must be put in to break the bonds in the reactants and the energy that is released upon making the bonds in the products.

Explanation:

The heat energy is absorbed to break the chemical bonds, which are responsible for the attractive interactions between atoms and molecules, and which gives stability to chemical compounds. While the heat energy is released upon making the bonds in the chemical compounds.

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3 years ago

A 5 kg fish swimming at 1 m/s swallows an absentminded 500 g fish swimming toward it at a veloc- ity that brings both fish to a

morpeh [17]

Answer:

v = 10 m/s

Explanation:

given,

Mass of large fish, M = 5 Kg

speed of swimming, v' = 1 m/s

mass of small fish, m = 500 g = 0.5 Kg

speed of the fish = v

using conservation of momentum

m v + M v' = M u' + m u

final speed of both the speed is zero.

- 0.5 x v + 5 x 1 = 0

negative sign is used because small fish is moving in opposite direction.

now,

0.5 v = 5

v = 10 m/s

hence, the speed of the small fish is equal to 10 m/s.

8 0

3 years ago