In the laboratory, sodium is stored under _______________ to prevent it from coming in contact with _______________. This precautionary measure is meant to avoid _______________ combustion of sodium. Sodium has a ___________ value of ignition temperature.
rajashreemithu
Asked:
September 2023
A rectangular block having a weight of 500N has the following dimensions 100cm x 50cm x 10cm. If the block is kept on a horizontal table, (a)Calculate the maximum pressure that it can exert on the table. (b)Calculate the minimum pressure that it can exert on the table.
rajashreemithu
Asked:
September 2023
Which one among these fuels will burn without a flame? When the same mass of fuel is burnt in air, which one of these will be most efficient in producing heat energy?
Calculate the net force acting on the block. A=5kgwt , B=10N
Minerals are depleting rapidly. true or false
minerals are depleting rapidly. true or false
iron ore deposits are mainly extracted from__________
rajashreemithu
Asked:
December 2022
The main aim of respiration is to provide energy for various metabolic activities . is it true or false