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3 years ago

An object accelerates. • 1st law • 2nd law

Physics

2 answers:

sergij07 [2.7K]3 years ago

7 0

Answer:

2nd law

Explanation:

hope it helps...

klio [65]3 years ago

3 0

This is a abbreviation of the 2nd Law of Motion

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In order to cool 1 ton of water at 20°C in an insulated tank, a person pours 140 kg of ice at –5°C into the water. The specific

salantis [7]

Answer:

$T = 6.31 ^0 C$

Explanation:

1 ton = 907.2 kg

so here heat given by water = heat absorbed by the ice

so by energy balance we will have

$Q_1 = Q_2$

$mL + ms\Delta T_1 + ms\Delta T_2 = ms\Delta T_3$

so we have

$140(2.11)(5) + 140(333.7) + 140(4.18)(T) = 907.2(4.18)(20 - T)$

$48195 + 585.2 T = 75841.9 - 3792.1 T$

$T = \frac{27646.92}{4377.3}$

$T = 6.31 ^0 C$

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3 years ago

Why is it that an object can accelerate while

posledela

For the same reason that you can skate around a curve at constant speed but not with constant velocity.

The DIRECTION you're going is part of your velocity, but it's not part of your speed.

If the DIRECTION changes, that's a change of velocity.

The object doesn't have to change speed to have a different velocity. A change of direction is enough to do it.

And any change of velocity is called acceleration.

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3 years ago

In Europe, gas cost approximately €0.98 per liter. How many dollars($) per gallon is this? using a factor method

bixtya [17]

Answer:

€0.98 per liter = 4.377 doller per gallon

Explanation:

It is given that, In Europe, gas cost approximately €0.98 per liter. We need to convert it into dollars($) per gallon.

We know that, 1 euro = 1.18 United States Dollar

1 litre = 0.264172 US gallon

Cost of gas in Europe is €0.98 per liter.

$0.98\ \text{euro/ liter}=\dfrac{0.98\times 1.18\ \text{doller}}{0.264172\ \text{gallon}}\\\\=4.377\ \text{doller/gallon}$

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4 years ago

The natural process where the sun's energy is trapped by the atmosphere to make the Earth warm enough for life is known as

Citrus2011 [14]

I think something like radiation

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4 years ago

Read 2 more answers

)consider two positively charged particles, one of charge q0 (particle 0) fixed at the origin, and another of charge q1 (particl

I am Lyosha [343]

here force between two particles is given by Coulomb's law where two particles will either repel or attract each other

this force of attraction or repulsion is given by the equation

$F = \frac{kq_1 q_2}{r^2}$

here we know that

$q_1 , q_2$ = two point charges

r = distance between two charges

so now we will substitute all values in it

$F = \frac{kq_0q_1}{d_1^2}$

so above is the force between two point charges

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3 years ago