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3 years ago

With an average surface temperature of about 737 K, _______ is the hottest planet.

Physics

2 answers:

frutty [35]3 years ago

5 0

With an average surface temperature of about 737 K, VENUS is the hottest planet.

givi [52]3 years ago

3 0

With an average surface temperature of about 737 K, Venus is the hottest planet.

While Mercury is closest to the sun, it has gaseous molecules that protect it. Venus is the second closest planet to the sun, and is the hottest planet.

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The particles of a gas are packed tightly together.

finlep [7]

Answer:

False

Explanation:

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3 years ago

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8. John has to hit a bottle with a ball to win a prize. He throws a 0.4 kg ball with a velocity of 18 m/s. It hits a 0.2 kg bott

nasty-shy [4]

Answer: The ball is travelling with a speed of 5.5 m/s after hitting the bottle.

Explanation:

To calculate the speed of ball after the collision, we use the equation of law of conservation of momentum, which is given by:

$m_1u_1+m_2u_2=m_1v_1+m_2v_2$

where,

$m_1,u_1\text{ and }v_1$ are the mass, initial velocity and final velocity of ball.

$m_2,u_2\text{ and }v_2$ are the mass, initial velocity and final velocity of bottle.

We are given:

$m_1=0.4kg\\u_1=18m/s\\v_1=?m/s\\m_2=0.2kg\\u_2=0m/s\\v_2=25m/s$

Putting values in above equation, we get:

$(0.4\times 18)+(0.2\times 0)=(0.4\times v_1)+(0.2\times 25)\\\\v_1=5.5m/s$

Hence, the ball is travelling with a speed of 5.5 m/s after hitting the bottle.

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3 years ago

Three examples that prove newton's law of motion

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If you have a skateboard and you skate into a tree on accident the same amount of force you put onto that tree when you was on the skateboard will come back at you when you bounce back

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Answer:

Behavioralsm, psychodynamic, humanistic, cognitivism.

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Explanation:

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