Answer:
(a)0.531m/s
(b)0.00169
Explanation:
We are given that
Mass of bullet, m=4.67 g=
1 kg =1000 g
Speed of bullet, v=357m/s
Mass of block 1,
Mass of block 2,
Velocity of block 1,
(a)
Let velocity of the second block after the bullet imbeds itself=v2
Using conservation of momentum
Initial momentum=Final momentum







Hence, the velocity of the second block after the bullet imbeds itself=0.531m/s
(b)Initial kinetic energy before collision



Final kinetic energy after collision



Now, he ratio of the total kinetic energy after the collision to that before the collision
=
=0.00169
C.
remember
reactants ----> products
Hot, soft rock rise from the bottom of the mantle towards the top, cools, and sinks back through the mantle.
The correct answer is magnetic field, electric field, and charges.
Answer:
The second one a part of it heats up Earth's land and water equally.
Explanation:
Hope this help!!!