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OverLord2011 [107]
3 years ago
13

Tell whether the following statements are true or false:

Physics
1 answer:
Digiron [165]3 years ago
8 0

Answer:

1)true

2)false

3)true

4)true

5)false,cz amatter is made of atoms while light is an electromagnetic radiation.

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How many degrees does earth rotate to the east every hour?
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(360 degrees) / (24hours)  =  15 degrees/hour  = 1 degree / 4minutes
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Could someone help me with this question please?
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for any ray on the mirror, incident angle - reflected angle.

angles wrt a normal to mirror

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What is the difference between condensation and conduction
aniked [119]

Answer:

Convection is the heat transfer due to the bulk movement of molecules within fluids such as gases and liquids, including molten rock. Condensation is the process by which water vapor in the air is changed into liquid water. Condensation is crucial to the water cycle because it is responsible for the formation of clouds. These clouds may produce precipitation, which is the primary route for water to return to the Earth's surface within the water cycle.

Explanation:

Their a difference....... A huge One

8 0
4 years ago
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]

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

<u>Explanation:</u>

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
Write a letter to a Friend congratulating her / him for her excellent result in annual examination. class 5 the​
gulaghasi [49]

Answer:

ok will do that

Explanation:

7 0
4 years ago
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