Answer:
very hard others will answer it
Explanation:
hard
Answer:

Explanation:
From the question we are told that:
Mass of cart A 
Mass of cart B 
Speed of cart AA
Generally the equation for velocity of A after collision
is mathematically given by




(A "release" of a chemical means that it is emitted to the air or water, or placed in some type of land disposal.)
False not all science experiments are done correctly
Answer:
magneto hydrodynamic( MHD) waves
Explanation:
The surface of the Sun transmits magneto hydrodynamic( MHD) waves to its atmosphere. These waves carry energy from the sun's surface to its atmosphere ( Corona) and heat up the atmosphere to such extent that its temperature rises to many time than that of the surface temperature of the Sun.