Answer:
bhai nam kya hai (whats your name)
Explanation:
please comment
3. An object will float if its density is less than the matter it is submerged in.
If it sinks in water, its density is more than 1. If it floats in glycerin, its density is less than 1.26.
Answer:
Approximately
.
Explanation:
Make use of the fact that total momentum is conserved in collisions.
The momentum of an object of mass
and velocity
is
.
The momentum of the two trolleys before the collision would be:
.
.
Thus, the total momentum of the two trolleys right before the collision would be
.
Since the two trolleys are stuck to one another after the collision, they could modelled as one big trolley of mass
.
The momentum of the two trolleys, combined, is conserved during the collision. Thus, the total momentum of the new trolley of mass
would continue to be
shortly after the collision.
Rearrange the equation
to find the velocity of the two trolleys combined:
.
Answer:
volume about 1.3 million Earths could fit inside the Sun the mass of the Sun is 1.989 X 10 to the 30 kg about 333000 times the mass of the Earth
Explanation:
step-by-step explanation hope this answer your question
Answer:
ответ 1.25 × 10‐³ и вот ваш ответ