3 years ago

A soccer ball was kicked . it had the mass of .42 kg and accelerated at 25m/s . what was the force?

Physics

1 answer:

kaheart [24]3 years ago

6 0

brainly.com/question/3414828
here lol

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What would happen if a nuclear power plant blew up?.

Eduardwww [97]

Answer:

look at Chernobyl it is a nuclear power plant that blew up

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2 years ago

To heat the water in the tank from 50°C to 58°C the immersion heater transfers

LenKa [72]

Let's see

∆T=58-50=8°C

$\\ \rm\Rrightarrow Q=mc\Delta T$

$\\ \rm\Rrightarrow 4032=4200(8)m$

$\\ \rm\Rrightarrow 4032/8=4200m$

$\\ \rm\Rrightarrow 504=4200m$

$\\ \rm\Rrightarrow m=0.12kg$

$\\ \rm\Rrightarrow m=120g$

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2 years ago

Your life expectancy can be related to the overall well-being of your body your mind and your relationships with other people tr

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3 years ago

Two students walk in the same direction along a straight path, at a constant speedâone at 0.90 m/s and the other at 1.90 m/s.

mixer [17]

Answer:

456.143684211 seconds

564.3 m

Explanation:

s = Distance

v = Velocity

Time is given by

$t=\dfrac{s}{v}\\\Rightarrow t=\dfrac{780}{0.9}\\\Rightarrow t=866.67\ s$

$t=\dfrac{s}{v}\\\Rightarrow t=\dfrac{780}{1.9}\\\Rightarrow t=410.526315789\ s$

Difference in time = 866.67-410.526315789 = 456.143684211 seconds

According to the question

$\dfrac{x}{0.9}-\dfrac{x}{1.9}=5.5\times 60\\\Rightarrow x(\dfrac{1}{0.9}-\dfrac{1}{1.9})=330\\\Rightarrow x=\dfrac{330}{\dfrac{1}{0.9}-\dfrac{1}{1.9}}\\\Rightarrow x=564.3\ m$

The students would have to walk 564.3 m

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2 years ago

when you boil water to make pasta hot water from the bottom of the pan carries thermal energy to water molecules at the top the

FrozenT [24]

Answer:

photosynthesis

Explanation:

not sure heat i think

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3 years ago