Answer:
Explanation:
Heat capacity A = 3 x heat capacity of B
initial temperature of A = 2 x initial temperature of B
TA = 2 TB
Let T be the final temperature of the system
Heat lost by A is equal to the heat gained by B
mass of A x specific heat of A x (TA - T) = mass of B x specific heat of B x ( T - TB)
heat capacity of A x ( TA - T) = heat capacity of B x ( T - TB)
3 x heat capacity of B x ( TA - T) = heat capacity of B x ( T - TB)
3 TA - 3 T = T - TB
6 TB + TB = 4 T
T = 1.75 TB
Explanation:
Many would know it as a reaction force. Reaction force is the force by the surface on the object perpendicular to it's motion. So if we apply force on the sliding block perpendicular to it's direction of motion, friction will increase. ... That force is proportional to the velocity with which it is moving.
Answer:
Nuclear fission of U235 to Kr92 and Ba 141.
Explanation:
Nuclear fission is the spantenous disintegration or breaking down of a big atom into smaller nucleus with the release of huge amount of energy. It involves the artificial transmutation of a heavier nucleus by bombardment with other rasuiactive particles.
Answer:
the answer is the second one
Explanation:
the person is moving through the air while the other people are either not moving forward or backwards or on the ground with full controll over where they go
Answer:Aluminium displaces more water
Explanation:
Given
mass of aluminium block=1 kg
mass of lead block= 1 kg
Also we know density of lead
Density of Aluminium
As the density of lead is more than that of Aluminium therefore its volume is lesser than Aluminium for same mass.
Thus aluminium displaces more amount of water as compared to lead.
