Questions This is the famous Jallianwala Bagh of Amritsar. Here on
13 April 1919. a crowd of around 20,000 people had gathered
for a public meeting They included men, women and children
The British General Dyer came there with his riflemen He
blocked all the exit points
. Without giving any warning, he
ordered his riflemen to fire at the crowd. About 1000 people
were killed and more than 1500 were wounded
Questions
What happed in Jallianwala Bagh on April 13, 1919 ?
For what purpose had the people gathered in Jalanwala Bagh?
Choose true and false statements
al The park had no exit
b) The British General Dyer came there with his riflemen

Acricket ball of 70g moving with a velocity of 0.5 m/s is stopped by a player in 0.5s what is the force applied to stop the ball

Clothing made of several thin layers of fabric with trapped air in between, often called ski clothing, is commonly used in cold climates because it is light, fashionable, and a very effective thermal insulator. so it is no surprise that such clothing has largely replaced thickand heavy old-fashioned coats. (a) consider a jacket made of five layers of 0.1-mm-thick synthetic fabric (k = 0.13 w/m·°c) with 1.5-mm-thick air space (k = 0.026 w/m·°c) between the layers. assuming the inner surface temperature of the jacket to be 28°c and the surface area to be 1.25 m2, determine the rate of heat loss through the jacket when the temperature of the outdoors is 0°c and the heat transfer coefficient at the outer surface is 25 w/m2·°c. (b) what would your response be if the jacket is made of a single layer of 0.5-mm-thick synthetic fabric? what should be the thickness of a wool fabric (k = 0.035 w/m·°c) if the person is to achieve the same level of thermal comfort wearing a thick wool coat instead of a five-layer ski jacket?

Matter that emits no light at any wavelength is called