Choice A is the right answer! Buy at high altitude and sell at low altitude
Hope this helps :)
Malleable basically means bendable and shapeable. notebook paper is the easiest to bend and shape
Answer:
-730KJ
Explanation:
According to the first law of thermodynamics;
Let the total energy of the system be ∆E
Let heat be q and let work the w
Since the energy decreases ∆E is negative
Since work is done on the system w= positive
So;
- 250 = 480 + q
q = -250 - 480
q=-730KJ
Answer:
+5300 kg m/s
Explanation:
In any type of collision, the total momentum is conserved. Therefore, we can just calculate the total momentum before the collision, and the final momentum will be equal to the initial one.
The total momentum before the collision is:
where
is the mass of the bus
is the mass of the car
is the initial velocity of the bus
is the initial velocity of the car
Substituting the numbers, we find
And since the total momentum is conserved, this is also the final momentum after the collision.
