Questions

Physics

1 answer:

Firdavs [7]2 years ago

6 0

Answer:

People of jallianwala bagh where gathered for a public meeting

1)false

2)true

Explanation:

The number one of true and false is false because the exit was blocked so there was exits it was only blocked

The number two is true because the British general dyar came with the riflemen

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Room temperature water is placed in an Erlenmyer flask and heated to the boiling point. After the flask is removed from the heat

Vaselesa [24]

Explanation:

When water is boiled in the flask . Some portion of it is evaporated out . Now when cork is placed on it and is placed in the ice box . It cools down , by which the pressure inside decreases .

Due to decrease of pressure , the boiling point of water also decreases . Now it can boil at lower temperature . Thus it starts boiling at lower temperature even , when placed in the ice box .

7 0

3 years ago

A ball on a string makes 25.0 revolutions in 9.37 s, in a circle radius 0.450 m. What is it’s velocity?

Sauron [17]

The velocity of the ball is 12.5 m/s

Explanation:

The velocity of the ball is given by the ratio between the distance covered by the ball and the time taken:

$v=\frac{d}{t}$